├── .all-contributorsrc ├── .babelrc ├── .circleci └── config.yml ├── .codacy.yml ├── .github ├── FUNDING.yml └── ISSUE_TEMPLATE │ ├── FUNDING.yml │ ├── bug_report.md │ ├── compatibility-issue.md │ ├── feature_request.md │ └── question.md ├── .gitignore ├── .npmignore ├── CODE_OF_CONDUCT.md ├── LICENSE ├── README.md ├── changelog.md ├── compatibility.md ├── examples ├── electron │ └── README.md ├── html5 │ ├── README.md │ └── index.html ├── lit │ ├── README.md │ ├── index.html │ ├── qrcode-scanner.js │ └── qrcode-scanner.ts └── vuejs │ ├── README.md │ ├── index.html │ └── style.css ├── experimental.md ├── minified ├── html5-qrcode.min.js └── readme.md ├── package-lock.json ├── package.json ├── scripts ├── build-webpack.bat ├── build-webpack.sh ├── test-run.bat ├── test-run.sh ├── webpack_append_data.js └── webpack_append_data.min.js ├── src ├── camera │ ├── core-impl.ts │ ├── core.ts │ ├── factories.ts │ ├── permissions.ts │ └── retriever.ts ├── code-decoder.ts ├── core.ts ├── experimental-features.ts ├── html5-qrcode-scanner.ts ├── html5-qrcode.ts ├── image-assets.ts ├── index.ts ├── native-bar-code-detector.ts ├── state-manager.ts ├── storage.ts ├── strings.ts ├── ui.ts ├── ui │ └── scanner │ │ ├── base.ts │ │ ├── camera-selection-ui.ts │ │ ├── camera-zoom-ui.ts │ │ ├── file-selection-ui.ts │ │ ├── scan-type-selector.ts │ │ └── torch-button.ts ├── utils.ts └── zxing-html5-qrcode-decoder.ts ├── tests ├── README.md ├── core.test.ts └── ui │ └── scanner │ ├── base.test.ts │ ├── camera-selection-ui.test.ts │ ├── camera-zoom-ui.test.ts │ ├── file-selection-ui.test.ts │ ├── scan-type-selector.test.ts │ └── torch-button.test.ts ├── third_party ├── zxing-js.umd.d.ts └── zxing-js.umd.js ├── tsconfig.json ├── tsconfig.lib-cjs.json ├── tsconfig.lib-es2015.json ├── tsconfig.lib-esm.json ├── tsconfig.lib-esnext.json ├── tsconfig.test.json └── webpack.config.js /.all-contributorsrc: -------------------------------------------------------------------------------- 1 | { 2 | "files": ["README.md"], 3 | "imageSize": 100, 4 | "contributorsPerLine": 7, 5 | "contributorsSortAlphabetically": false, 6 | "badgeTemplate": "[![All Contributors](https://img.shields.io/badge/all_contributors-<%= contributors.length %>-orange.svg?style=flat-square)](#contributors)", 7 | "contributorTemplate": "\">\" width=\"<%= options.imageSize %>px;\" alt=\"\"/>
<%= contributor.name %>
", 8 | "types": { 9 | "custom": { 10 | "symbol": "🔭", 11 | "description": "A custom contribution type.", 12 | "link": "[<%= symbol %>](<%= url %> \"<%= description %>\")," 13 | } 14 | }, 15 | "skipCi": "true", 16 | "contributors": [] 17 | } 18 | -------------------------------------------------------------------------------- /.babelrc: -------------------------------------------------------------------------------- 1 | { 2 | "plugins": ["@babel/plugin-proposal-class-properties"], 3 | "presets": ["@babel/preset-env"] 4 | } 5 | -------------------------------------------------------------------------------- /.circleci/config.yml: -------------------------------------------------------------------------------- 1 | # This config is equivalent to both the '.circleci/extended/orb-free.yml' and the base '.circleci/config.yml' 2 | version: 2.1 3 | 4 | # Orbs are reusable packages of CircleCI configuration that you may share across projects, enabling you to create encapsulated, parameterized commands, jobs, and executors that can be used across multiple projects. 5 | # See: https://circleci.com/docs/2.0/orb-intro/ 6 | orbs: 7 | node: circleci/node@4.7 8 | 9 | # Invoke jobs via workflows 10 | # See: https://circleci.com/docs/2.0/configuration-reference/#workflows 11 | workflows: 12 | sample: # This is the name of the workflow, feel free to change it to better match your workflow. 13 | # Inside the workflow, you define the jobs you want to run. 14 | jobs: 15 | - node/test: 16 | # This is the node version to use for the `cimg/node` tag 17 | # Relevant tags can be found on the CircleCI Developer Hub 18 | # https://circleci.com/developer/images/image/cimg/node 19 | version: '16.10' 20 | # If you are using yarn, change the line below from "npm" to "yarn" 21 | pkg-manager: npm 22 | -------------------------------------------------------------------------------- /.codacy.yml: -------------------------------------------------------------------------------- 1 | --- 2 | exclude_paths: 3 | - ".github/**" 4 | - "assets/**" 5 | - "dist/**" 6 | - "node_modules/**" 7 | - "third_party/**" 8 | - "changelog.md" 9 | - "CODE_OF_CONDUCT.md" 10 | - "scripts/**" 11 | -------------------------------------------------------------------------------- /.github/FUNDING.yml: -------------------------------------------------------------------------------- 1 | github: mebjas 2 | ko_fi: minhazav 3 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/FUNDING.yml: -------------------------------------------------------------------------------- 1 | github: mebjas 2 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/bug_report.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Bug report 3 | about: Create a report to help us improve 4 | title: '' 5 | labels: '' 6 | assignees: '' 7 | 8 | --- 9 | 10 | **Describe the bug** 11 | A clear and concise description of what the bug is. 12 | 13 | **To Reproduce** 14 | Steps to reproduce the behavior: 15 | 1. Go to '...' 16 | 2. Click on '....' 17 | 3. Scroll down to '....' 18 | 4. See error 19 | 20 | **Expected behavior** 21 | A clear and concise description of what you expected to happen. 22 | 23 | **Screenshots** 24 | If applicable, add screenshots to help explain your problem. 25 | 26 | **Desktop (please complete the following information):** 27 | - OS: [e.g. iOS] 28 | - Browser [e.g. chrome, safari] 29 | - Version [e.g. 22] 30 | 31 | **Smartphone (please complete the following information):** 32 | - Device: [e.g. iPhone6] 33 | - OS: [e.g. iOS8.1] 34 | - Browser [e.g. stock browser, safari] 35 | - Version [e.g. 22] 36 | 37 | **Additional context** 38 | Add any other context about the problem here. 39 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/compatibility-issue.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Compatibility Issue 3 | about: Report compatibility issue for a certain browser 4 | title: Compatibility - [OS] [Browser] - [What is not working] 5 | labels: compatibility 6 | assignees: '' 7 | 8 | --- 9 | 10 | **Describe the bug** 11 | A clear and concise description of what the bug is. 12 | - What is not working and what is expected. 13 | 14 | **Describe the browser:** 15 | - OS: [e.g. iOS, Android, MacOs or Windows] 16 | - Browser [e.g. chrome, safari, edge, firefox] 17 | - Version [e.g. 22] 18 | 19 | **Screenshots** 20 | If applicable, add screenshots to help explain your problem. 21 | 22 | **Additional context** 23 | Add any other context about the problem here. 24 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/feature_request.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Feature request 3 | about: Suggest an idea for this project 4 | title: "[Feature Request] One liner for the request" 5 | labels: enhancement, ferature-request 6 | assignees: '' 7 | 8 | --- 9 | 10 | **Is your feature request related to a problem? Please describe.** 11 | A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] 12 | 13 | **Describe the solution you'd like** 14 | A clear and concise description of what you want to happen. 15 | 16 | **Describe alternatives you've considered** 17 | A clear and concise description of any alternative solutions or features you've considered. 18 | 19 | **Additional context** 20 | Add any other context or screenshots about the feature request here. 21 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/question.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Question 3 | about: Ask a question about html5-qrcode library to the authors 4 | title: '[Question]' 5 | labels: 'stackoverflow-question' 6 | assignees: '' 7 | 8 | --- 9 | 10 | **Describe the Question** 11 | A clear and concise description of what the question is. 12 | 13 | **Link to stackoverflow** 14 | Please raise this question in [stackoverflow.com](https://stackoverflow.com/questions/ask) for faster answer and add the link here. 15 | 16 | **Context about your web application** 17 | Where are you using this and how. It'd be helpful if you provide your usage code example 18 | 19 | ```js 20 | // Code example here. 21 | ``` 22 | 23 | **Optional, Environment (please complete the following information):** 24 | - Device: [e.g. iPhone6] 25 | - OS: [e.g. iOS] 26 | - Browser [e.g. chrome, safari] 27 | - Version [e.g. 22] 28 | 29 | **Additional context** 30 | Add any other context about the problem here. 31 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | node_modules/ 3 | package-lock.json 4 | .vscode/ 5 | dist/ 6 | src/*.d.ts 7 | src/*/*.d.ts 8 | src/*/*/*.d.ts 9 | docs/ 10 | -------------------------------------------------------------------------------- /.npmignore: -------------------------------------------------------------------------------- 1 | test/ 2 | node_modules/ 3 | transpiled/ 4 | html5-qrcode.js 5 | assets/ 6 | -------------------------------------------------------------------------------- /CODE_OF_CONDUCT.md: -------------------------------------------------------------------------------- 1 | # Contributor Covenant Code of Conduct 2 | 3 | ## Our Pledge 4 | 5 | In the interest of fostering an open and welcoming environment, we as 6 | contributors and maintainers pledge to making participation in our project and 7 | our community a harassment-free experience for everyone, regardless of age, body 8 | size, disability, ethnicity, sex characteristics, gender identity and expression, 9 | level of experience, education, socio-economic status, nationality, personal 10 | appearance, race, religion, or sexual identity and orientation. 11 | 12 | ## Our Standards 13 | 14 | Examples of behavior that contributes to creating a positive environment 15 | include: 16 | 17 | * Using welcoming and inclusive language 18 | * Being respectful of differing viewpoints and experiences 19 | * Gracefully accepting constructive criticism 20 | * Focusing on what is best for the community 21 | * Showing empathy towards other community members 22 | 23 | Examples of unacceptable behavior by participants include: 24 | 25 | * The use of sexualized language or imagery and unwelcome sexual attention or 26 | advances 27 | * Trolling, insulting/derogatory comments, and personal or political attacks 28 | * Public or private harassment 29 | * Publishing others' private information, such as a physical or electronic 30 | address, without explicit permission 31 | * Other conduct which could reasonably be considered inappropriate in a 32 | professional setting 33 | 34 | ## Our Responsibilities 35 | 36 | Project maintainers are responsible for clarifying the standards of acceptable 37 | behavior and are expected to take appropriate and fair corrective action in 38 | response to any instances of unacceptable behavior. 39 | 40 | Project maintainers have the right and responsibility to remove, edit, or 41 | reject comments, commits, code, wiki edits, issues, and other contributions 42 | that are not aligned to this Code of Conduct, or to ban temporarily or 43 | permanently any contributor for other behaviors that they deem inappropriate, 44 | threatening, offensive, or harmful. 45 | 46 | ## Scope 47 | 48 | This Code of Conduct applies both within project spaces and in public spaces 49 | when an individual is representing the project or its community. Examples of 50 | representing a project or community include using an official project e-mail 51 | address, posting via an official social media account, or acting as an appointed 52 | representative at an online or offline event. Representation of a project may be 53 | further defined and clarified by project maintainers. 54 | 55 | ## Enforcement 56 | 57 | Instances of abusive, harassing, or otherwise unacceptable behavior may be 58 | reported by contacting the project team at minhazav@gmail.com. All 59 | complaints will be reviewed and investigated and will result in a response that 60 | is deemed necessary and appropriate to the circumstances. The project team is 61 | obligated to maintain confidentiality with regard to the reporter of an incident. 62 | Further details of specific enforcement policies may be posted separately. 63 | 64 | Project maintainers who do not follow or enforce the Code of Conduct in good 65 | faith may face temporary or permanent repercussions as determined by other 66 | members of the project's leadership. 67 | 68 | ## Attribution 69 | 70 | This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, 71 | available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html 72 | 73 | [homepage]: https://www.contributor-covenant.org 74 | 75 | For answers to common questions about this code of conduct, see 76 | https://www.contributor-covenant.org/faq 77 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. Definitions. 8 | 9 | "License" shall mean the terms and conditions for use, reproduction, 10 | and distribution as defined by Sections 1 through 9 of this document. 11 | 12 | "Licensor" shall mean the copyright owner or entity authorized by 13 | the copyright owner that is granting the License. 14 | 15 | "Legal Entity" shall mean the union of the acting entity and all 16 | other entities that control, are controlled by, or are under common 17 | control with that entity. For the purposes of this definition, 18 | "control" means (i) the power, direct or indirect, to cause the 19 | direction or management of such entity, whether by contract or 20 | otherwise, or (ii) ownership of fifty percent (50%) or more of the 21 | outstanding shares, or (iii) beneficial ownership of such entity. 22 | 23 | "You" (or "Your") shall mean an individual or Legal Entity 24 | exercising permissions granted by this License. 25 | 26 | "Source" form shall mean the preferred form for making modifications, 27 | including but not limited to software source code, documentation 28 | source, and configuration files. 29 | 30 | "Object" form shall mean any form resulting from mechanical 31 | transformation or translation of a Source form, including but 32 | not limited to compiled object code, generated documentation, 33 | and conversions to other media types. 34 | 35 | "Work" shall mean the work of authorship, whether in Source or 36 | Object form, made available under the License, as indicated by a 37 | copyright notice that is included in or attached to the work 38 | (an example is provided in the Appendix below). 39 | 40 | "Derivative Works" shall mean any work, whether in Source or Object 41 | form, that is based on (or derived from) the Work and for which the 42 | editorial revisions, annotations, elaborations, or other modifications 43 | represent, as a whole, an original work of authorship. For the purposes 44 | of this License, Derivative Works shall not include works that remain 45 | separable from, or merely link (or bind by name) to the interfaces of, 46 | the Work and Derivative Works thereof. 47 | 48 | "Contribution" shall mean any work of authorship, including 49 | the original version of the Work and any modifications or additions 50 | to that Work or Derivative Works thereof, that is intentionally 51 | submitted to Licensor for inclusion in the Work by the copyright owner 52 | or by an individual or Legal Entity authorized to submit on behalf of 53 | the copyright owner. For the purposes of this definition, "submitted" 54 | means any form of electronic, verbal, or written communication sent 55 | to the Licensor or its representatives, including but not limited to 56 | communication on electronic mailing lists, source code control systems, 57 | and issue tracking systems that are managed by, or on behalf of, the 58 | Licensor for the purpose of discussing and improving the Work, but 59 | excluding communication that is conspicuously marked or otherwise 60 | designated in writing by the copyright owner as "Not a Contribution." 61 | 62 | "Contributor" shall mean Licensor and any individual or Legal Entity 63 | on behalf of whom a Contribution has been received by Licensor and 64 | subsequently incorporated within the Work. 65 | 66 | 2. Grant of Copyright License. Subject to the terms and conditions of 67 | this License, each Contributor hereby grants to You a perpetual, 68 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 69 | copyright license to reproduce, prepare Derivative Works of, 70 | publicly display, publicly perform, sublicense, and distribute the 71 | Work and such Derivative Works in Source or Object form. 72 | 73 | 3. Grant of Patent License. Subject to the terms and conditions of 74 | this License, each Contributor hereby grants to You a perpetual, 75 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 76 | (except as stated in this section) patent license to make, have made, 77 | use, offer to sell, sell, import, and otherwise transfer the Work, 78 | where such license applies only to those patent claims licensable 79 | by such Contributor that are necessarily infringed by their 80 | Contribution(s) alone or by combination of their Contribution(s) 81 | with the Work to which such Contribution(s) was submitted. If You 82 | institute patent litigation against any entity (including a 83 | cross-claim or counterclaim in a lawsuit) alleging that the Work 84 | or a Contribution incorporated within the Work constitutes direct 85 | or contributory patent infringement, then any patent licenses 86 | granted to You under this License for that Work shall terminate 87 | as of the date such litigation is filed. 88 | 89 | 4. Redistribution. You may reproduce and distribute copies of the 90 | Work or Derivative Works thereof in any medium, with or without 91 | modifications, and in Source or Object form, provided that You 92 | meet the following conditions: 93 | 94 | (a) You must give any other recipients of the Work or 95 | Derivative Works a copy of this License; and 96 | 97 | (b) You must cause any modified files to carry prominent notices 98 | stating that You changed the files; and 99 | 100 | (c) You must retain, in the Source form of any Derivative Works 101 | that You distribute, all copyright, patent, trademark, and 102 | attribution notices from the Source form of the Work, 103 | excluding those notices that do not pertain to any part of 104 | the Derivative Works; and 105 | 106 | (d) If the Work includes a "NOTICE" text file as part of its 107 | distribution, then any Derivative Works that You distribute must 108 | include a readable copy of the attribution notices contained 109 | within such NOTICE file, excluding those notices that do not 110 | pertain to any part of the Derivative Works, in at least one 111 | of the following places: within a NOTICE text file distributed 112 | as part of the Derivative Works; within the Source form or 113 | documentation, if provided along with the Derivative Works; or, 114 | within a display generated by the Derivative Works, if and 115 | wherever such third-party notices normally appear. The contents 116 | of the NOTICE file are for informational purposes only and 117 | do not modify the License. You may add Your own attribution 118 | notices within Derivative Works that You distribute, alongside 119 | or as an addendum to the NOTICE text from the Work, provided 120 | that such additional attribution notices cannot be construed 121 | as modifying the License. 122 | 123 | You may add Your own copyright statement to Your modifications and 124 | may provide additional or different license terms and conditions 125 | for use, reproduction, or distribution of Your modifications, or 126 | for any such Derivative Works as a whole, provided Your use, 127 | reproduction, and distribution of the Work otherwise complies with 128 | the conditions stated in this License. 129 | 130 | 5. Submission of Contributions. Unless You explicitly state otherwise, 131 | any Contribution intentionally submitted for inclusion in the Work 132 | by You to the Licensor shall be under the terms and conditions of 133 | this License, without any additional terms or conditions. 134 | Notwithstanding the above, nothing herein shall supersede or modify 135 | the terms of any separate license agreement you may have executed 136 | with Licensor regarding such Contributions. 137 | 138 | 6. Trademarks. This License does not grant permission to use the trade 139 | names, trademarks, service marks, or product names of the Licensor, 140 | except as required for reasonable and customary use in describing the 141 | origin of the Work and reproducing the content of the NOTICE file. 142 | 143 | 7. Disclaimer of Warranty. Unless required by applicable law or 144 | agreed to in writing, Licensor provides the Work (and each 145 | Contributor provides its Contributions) on an "AS IS" BASIS, 146 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 147 | implied, including, without limitation, any warranties or conditions 148 | of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A 149 | PARTICULAR PURPOSE. You are solely responsible for determining the 150 | appropriateness of using or redistributing the Work and assume any 151 | risks associated with Your exercise of permissions under this License. 152 | 153 | 8. Limitation of Liability. In no event and under no legal theory, 154 | whether in tort (including negligence), contract, or otherwise, 155 | unless required by applicable law (such as deliberate and grossly 156 | negligent acts) or agreed to in writing, shall any Contributor be 157 | liable to You for damages, including any direct, indirect, special, 158 | incidental, or consequential damages of any character arising as a 159 | result of this License or out of the use or inability to use the 160 | Work (including but not limited to damages for loss of goodwill, 161 | work stoppage, computer failure or malfunction, or any and all 162 | other commercial damages or losses), even if such Contributor 163 | has been advised of the possibility of such damages. 164 | 165 | 9. Accepting Warranty or Additional Liability. While redistributing 166 | the Work or Derivative Works thereof, You may choose to offer, 167 | and charge a fee for, acceptance of support, warranty, indemnity, 168 | or other liability obligations and/or rights consistent with this 169 | License. However, in accepting such obligations, You may act only 170 | on Your own behalf and on Your sole responsibility, not on behalf 171 | of any other Contributor, and only if You agree to indemnify, 172 | defend, and hold each Contributor harmless for any liability 173 | incurred by, or claims asserted against, such Contributor by reason 174 | of your accepting any such warranty or additional liability. 175 | 176 | END OF TERMS AND CONDITIONS 177 | 178 | APPENDIX: How to apply the Apache License to your work. 179 | 180 | To apply the Apache License to your work, attach the following 181 | boilerplate notice, with the fields enclosed by brackets "[]" 182 | replaced with your own identifying information. (Don't include 183 | the brackets!) The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [2020] [MINHAZ ] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Html5-QRCode 2 | 3 | ## Important - Looking for new owners for this project. 4 | 5 | If interested, please reach out at `minhazav@gmail.com`. 6 | 7 | ## Html5-QRCode 8 | 9 | > **Important** The project is in maintenance mode until further notice. The author shall not be able to make any bug fixes or improvements for the time-being. Pull requests also won't be merged for the timebeing. If you have a fork you can maintain - please share the details to minhazav@gmail.com. I am happy to advertise them here! 10 | > Ok to use the project as is. Example: [scanapp.org](https://scanapp.org). 11 | 12 | ## Lightweight & cross platform QR Code and Bar code scanning library for the web 13 | 14 | Use this lightweight library to easily / quickly integrate QR code, bar code, and other common code scanning capabilities to your web application. 15 | 16 | ## Key highlights 17 | - 🔲 Support scanning [different types of bar codes and QR codes](#supported-code-formats). 18 | 19 | - 🖥 Supports [different platforms](#supported-platforms) be it Android, IOS, MacOs, Windows or Linux 20 | 21 | - 🌐 Supports [different browsers](#supported-platforms) like Chrome, Firefox, Safari, Edge, Opera ... 22 | 23 | - 📷 Supports scanning with camera as well as local files 24 | 25 | - ➡️ Comes with an [end to end library with UI](#easy-mode---with-end-to-end-scanner-user-interface) as well as a [low level library to build your own UI with](#pro-mode---if-you-want-to-implement-your-own-user-interface). 26 | 27 | - 🔦 Supports customisations like [flash/torch support](#showtorchbuttonifsupported---boolean--undefined), zooming etc. 28 | 29 | 30 | Supports two kinds of APIs 31 | 32 | - `Html5QrcodeScanner` — End-to-end scanner with UI, integrate with less than ten lines of code. 33 | 34 | - `Html5Qrcode` — Powerful set of APIs you can use to build your UI without worrying about camera setup, handling permissions, reading codes, etc. 35 | 36 | > Support for scanning local files on the device is a new addition and helpful for the web browser which does not support inline web-camera access in smartphones. **Note:** This doesn't upload files to any server — everything is done locally. 37 | 38 | [![CircleCI](https://dl.circleci.com/status-badge/img/gh/mebjas/html5-qrcode/tree/master.svg?style=svg)](https://dl.circleci.com/status-badge/redirect/gh/mebjas/html5-qrcode/tree/master) [![GitHub issues](https://img.shields.io/github/issues/mebjas/html5-qrcode)](https://github.com/mebjas/html5-qrcode/issues) [![GitHub tag (latest by date)](https://img.shields.io/github/v/tag/mebjas/html5-qrcode)](https://github.com/mebjas/html5-qrcode/releases) ![GitHub](https://img.shields.io/github/license/mebjas/html5-qrcode) [![Codacy Badge](https://app.codacy.com/project/badge/Grade/51e4f0ef8b0b42e1b93ce29875dd23a0)](https://www.codacy.com/gh/mebjas/html5-qrcode/dashboard?utm_source=github.com&utm_medium=referral&utm_content=mebjas/html5-qrcode&utm_campaign=Badge_Grade) [![Gitter](https://badges.gitter.im/html5-qrcode/community.svg)](https://gitter.im/html5-qrcode/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) 39 | 40 | ![GitHub all releases](https://img.shields.io/github/downloads/mebjas/html5-qrcode/total?label=Github%20downloads&style=for-the-badge) [![npm](https://img.shields.io/npm/dw/html5-qrcode?label=npm%20downloads&style=for-the-badge)](https://www.npmjs.com/package/html5-qrcode) [![](https://img.shields.io/badge/Medium-12100E?style=for-the-badge&logo=medium&logoColor=white)](https://bit.ly/3CZiASv) 41 | 42 | | | | 43 | | -- | -- | 44 | | _Demo at [scanapp.org](https://scanapp.org)_ | _Demo at [qrcode.minhazav.dev](https://qrcode.minhazav.dev) - **Scanning different types of codes**_ | 45 | 46 | ## We need your help! 47 | 48 | ![image](https://user-images.githubusercontent.com/3007365/222830114-e5bcca15-bf8a-434e-9f48-339e82a0a4ef.png) 49 | Help incentivise feature development, bug fixing by supporting the sponsorhip goals of this project. See [list of sponsered feature requests here](https://github.com/mebjas/html5-qrcode/wiki/Feature-request-sponsorship-goals#feature-requests). 50 | 51 | [![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/L3L84G0C8) 52 | 53 | ## Documentation 54 | 55 | The documentation for this project has been moved to [scanapp.org/html5-qrcode-docs](https://scanapp.org/html5-qrcode-docs/). 56 | 57 | - [Getting started](https://scanapp.org/html5-qrcode-docs/docs/intro) 58 | - [Supported frameworks](https://scanapp.org/html5-qrcode-docs/docs/supported_frameworks) 59 | - [Supported 1D and 2D Code formats](https://scanapp.org/html5-qrcode-docs/docs/supported_code_formats) 60 | - [Detailed API documentation](https://scanapp.org/html5-qrcode-docs/docs/apis) 61 | 62 | ## Supported platforms 63 | 64 | We are working continuously on adding support for more and more platforms. If you find a platform or a browser where the library is not working, please feel free to file an issue. Check the [demo link](https://blog.minhazav.dev/research/html5-qrcode.html) to test it out. 65 | 66 | **Legends** 67 | - ![](https://scanapp.org/assets/github_assets/done.png) Means full support — inline webcam and file based 68 | - ![](https://scanapp.org/assets/github_assets/partial.png) Means partial support — only file based, webcam in progress 69 | 70 | ### PC / Mac 71 | 72 | | Firefox
Firefox | Chrome
Chrome | Safari
Safari | Opera
Opera | Edge
Edge 73 | | --------- | --------- | --------- | --------- | ------- | 74 | |![](https://scanapp.org/assets/github_assets/done.png)| ![](https://scanapp.org/assets/github_assets/done.png)| ![](https://scanapp.org/assets/github_assets/done.png)| ![](https://scanapp.org/assets/github_assets/done.png) | ![](https://scanapp.org/assets/github_assets/done.png) 75 | 76 | ### Android 77 | 78 | | Chrome
Chrome | Firefox
Firefox | Edge
Edge | Opera
Opera | Opera-Mini
Opera Mini | UC
UC 79 | | --------- | --------- | --------- | --------- | --------- | --------- | 80 | |![](https://scanapp.org/assets/github_assets/done.png)| ![](https://scanapp.org/assets/github_assets/done.png)| ![](https://scanapp.org/assets/github_assets/done.png)| ![](https://scanapp.org/assets/github_assets/done.png)| ![](https://scanapp.org/assets/github_assets/partial.png) | ![](https://scanapp.org/assets/github_assets/partial.png) 81 | 82 | ### IOS 83 | 84 | | Safari
Safari | Chrome
Chrome | Firefox
Firefox | Edge
Edge 85 | | --------- | --------- | --------- | --------- | 86 | |![](https://scanapp.org/assets/github_assets/done.png)| ![](https://scanapp.org/assets/github_assets/done.png)* | ![](https://scanapp.org/assets/github_assets/done.png)* | ![](https://scanapp.org/assets/github_assets/partial.png) 87 | 88 | 89 | > \* Supported for IOS versions >= 15.1 90 | > 91 | > Before version 15.1, Webkit for IOS is used by Chrome, Firefox, and other browsers in IOS and they do not have webcam permissions yet. There is an ongoing issue on fixing the support for iOS - [issue/14](https://github.com/mebjas/html5-qrcode/issues/14) 92 | 93 | ### Framework support 94 | The library can be easily used with several other frameworks, I have been adding examples for a few of them and would continue to add more. 95 | 96 | || | | | 97 | | -------- | -------- | -------- | -------- | -------- | 98 | | [Html5](./examples/html5) | [VueJs](./examples/vuejs) | [ElectronJs](./examples/electron) | [React](https://github.com/scanapp-org/html5-qrcode-react) | [Lit](./examples/lit) 99 | 100 | ### Supported Code formats 101 | Code scanning is dependent on [Zxing-js](https://github.com/zxing-js/library) library. We will be working on top of it to add support for more types of code scanning. If you feel a certain type of code would be helpful to have, please file a feature request. 102 | 103 | | Code | Example | 104 | | ---- | ----- | 105 | | QR Code | | 106 | | AZTEC | | 107 | | CODE_39| | 108 | | CODE_93| | 109 | | CODE_128| | 110 | | ITF| | 111 | | EAN_13| | 112 | | EAN_8| | 113 | | PDF_417| | 114 | | UPC_A| | 115 | | UPC_E| | 116 | | DATA_MATRIX| | 117 | | MAXICODE*| | 118 | | RSS_14*| | 119 | | RSS_EXPANDED*| | 120 | 121 | > *Formats are not supported by our experimental integration with native 122 | > BarcodeDetector API integration ([Read more](/experimental.md)). 123 | 124 | ## Description - [View Demo](https://blog.minhazav.dev/research/html5-qrcode.html) 125 | 126 | > See an end to end scanner experience at [scanapp.org](https://scanapp.org). 127 | 128 | This is a cross-platform JavaScript library to integrate QR code, bar codes & a few other types of code scanning capabilities to your applications running on HTML5 compatible browser. 129 | 130 | Supports: 131 | - Querying camera on the device (with user permissions) 132 | - Rendering live camera feed, with easy to use user interface for scanning 133 | - Supports scanning a different kind of QR codes, bar codes and other formats 134 | - Supports selecting image files from the device for scanning codes 135 | 136 | ## How to use 137 | 138 | Find detailed guidelines on how to use this library on [scanapp.org/html5-qrcode-docs](https://scanapp.org/html5-qrcode-docs/docs/intro). 139 | 140 | ## Demo 141 |
142 | _Scan this image or visit [blog.minhazav.dev/research/html5-qrcode.html](https://blog.minhazav.dev/research/html5-qrcode.html)_ 143 | 144 | ### For more information 145 | Check these articles on how to use this library: 146 | 147 | - [QR and barcode scanner using HTML and JavaScript](https://minhazav.medium.com/qr-and-barcode-scanner-using-html-and-javascript-2cdc937f793d) 148 | - [HTML5 QR Code scanning — launched v1.0.1 without jQuery dependency and refactored Promise based APIs](https://blog.minhazav.dev/HTML5-QR-Code-scanning-launched-v1.0.1/). 149 | - [HTML5 QR Code scanning with JavaScript — Support for scanning the local file and using default camera added (v1.0.5)](https://blog.minhazav.dev/HTML5-QR-Code-scanning-support-for-local-file-and-default-camera/) 150 | 151 | ## Screenshots 152 | ![screenshot](https://scanapp.org/assets/github_assets/screen.gif)
153 | _Figure: Screenshot from Google Chrome running on MacBook Pro_ 154 | 155 | ## Documentation 156 | Find the full API documentation at [scanapp.org/html5-qrcode-docs/docs/apis](https://scanapp.org/html5-qrcode-docs/docs/apis). 157 | 158 | ### Extra optional `configuration` in `start()` method 159 | Configuration object that can be used to configure both the scanning behavior and the user interface (UI). Most of the fields have default properties that will be used unless a different value is provided. If you do not want to override anything, you can just pass in an empty object `{}`. 160 | 161 | #### `fps` — Integer, Example = 10 162 | A.K.A frame per second, the default value for this is 2, but it can be increased to get faster scanning. Increasing too high value could affect performance. Value `>1000` will simply fail. 163 | 164 | #### `qrbox` — `QrDimensions` or `QrDimensionFunction` (Optional), Example = `{ width: 250, height: 250 }` 165 | Use this property to limit the region of the viewfinder you want to use for scanning. The rest of the viewfinder would be shaded. For example, by passing config `{ qrbox : { width: 250, height: 250 } }`, the screen will look like: 166 | 167 | 168 | 169 | This can be used to set a rectangular scanning area with config like: 170 | 171 | ```js 172 | let config = { qrbox : { width: 400, height: 150 } } 173 | ``` 174 | 175 | This config also accepts a function of type 176 | ```ts 177 | /** 178 | * A function that takes in the width and height of the video stream 179 | * and returns QrDimensions. 180 | * 181 | * Viewfinder refers to the video showing camera stream. 182 | */ 183 | type QrDimensionFunction = 184 | (viewfinderWidth: number, viewfinderHeight: number) => QrDimensions; 185 | ``` 186 | 187 | This allows you to set dynamic QR box dimensions based on the video dimensions. See this blog article for example: [Setting dynamic QR box size in Html5-qrcode - ScanApp blog](https://scanapp.org/blog/2022/01/09/setting-dynamic-qr-box-size-in-html5-qrcode.html) 188 | 189 | > This might be desirable for bar code scanning. 190 | 191 | If this value is not set, no shaded QR box will be rendered and the scanner will scan the entire area of video stream. 192 | 193 | #### `aspectRatio` — Float, Example 1.777778 for 16:9 aspect ratio 194 | Use this property to render the video feed in a certain aspect ratio. Passing a nonstandard aspect ratio like `100000:1` could lead to the video feed not even showing up. Ideal values can be: 195 | | Value | Aspect Ratio | Use Case | 196 | | ----- | ------------ | -------- | 197 | |1.333334 | 4:3 | Standard camera aspect ratio | 198 | |1.777778 | 16:9 | Full screen, cinematic | 199 | |1.0 | 1:1 | Square view | 200 | 201 | If you do not pass any value, the whole viewfinder would be used for scanning. 202 | **Note**: this value has to be smaller than the width and height of the `QR code HTML element`. 203 | 204 | #### `disableFlip` — Boolean (Optional), default = false 205 | By default, the scanner can scan for horizontally flipped QR Codes. This also enables scanning QR code using the front camera on mobile devices which are sometimes mirrored. This is `false` by default and I recommend changing this only if: 206 | - You are sure that the camera feed cannot be mirrored (Horizontally flipped) 207 | - You are facing performance issues with this enabled. 208 | 209 | Here's an example of a normal and mirrored QR Code 210 | | Normal QR Code | Mirrored QR Code | 211 | | ----- | ---- | 212 | | |
| 213 | 214 | #### `rememberLastUsedCamera` — Boolean (Optional), default = true 215 | If `true` the last camera used by the user and weather or not permission was granted would be remembered in the local storage. If the user has previously granted permissions — the request permission option in the UI will be skipped and the last selected camera would be launched automatically for scanning. 216 | 217 | If `true` the library shall remember if the camera permissions were previously 218 | granted and what camera was last used. If the permissions is already granted for 219 | "camera", QR code scanning will automatically * start for previously used camera. 220 | 221 | #### `supportedScanTypes` - `Array | []` 222 | > This is only supported for `Html5QrcodeScanner`. 223 | 224 | Default = `[Html5QrcodeScanType.SCAN_TYPE_CAMERA, Html5QrcodeScanType.SCAN_TYPE_FILE]` 225 | 226 | This field can be used to: 227 | - Limit support to either of `Camera` or `File` based scan. 228 | - Change default scan type. 229 | 230 | How to use: 231 | 232 | ```js 233 | function onScanSuccess(decodedText, decodedResult) { 234 | // handle the scanned code as you like, for example: 235 | console.log(`Code matched = ${decodedText}`, decodedResult); 236 | } 237 | 238 | let config = { 239 | fps: 10, 240 | qrbox: {width: 100, height: 100}, 241 | rememberLastUsedCamera: true, 242 | // Only support camera scan type. 243 | supportedScanTypes: [Html5QrcodeScanType.SCAN_TYPE_CAMERA] 244 | }; 245 | 246 | let html5QrcodeScanner = new Html5QrcodeScanner( 247 | "reader", config, /* verbose= */ false); 248 | html5QrcodeScanner.render(onScanSuccess); 249 | ``` 250 | 251 | For file based scan only choose: 252 | ```js 253 | supportedScanTypes: [Html5QrcodeScanType.SCAN_TYPE_FILE] 254 | ``` 255 | 256 | For supporting both as it is today, you can ignore this field or set as: 257 | ```js 258 | supportedScanTypes: [ 259 | Html5QrcodeScanType.SCAN_TYPE_CAMERA, 260 | Html5QrcodeScanType.SCAN_TYPE_FILE] 261 | ``` 262 | 263 | To set the file based scan as defult change the order: 264 | ```js 265 | supportedScanTypes: [ 266 | Html5QrcodeScanType.SCAN_TYPE_FILE, 267 | Html5QrcodeScanType.SCAN_TYPE_CAMERA] 268 | ``` 269 | 270 | #### `showTorchButtonIfSupported` - `boolean | undefined` 271 | > This is only supported for `Html5QrcodeScanner`. 272 | 273 | If `true` the rendered UI will have button to turn flash on or off based on device + browser support. The value is `false` by default. 274 | 275 | ### Scanning only specific formats 276 | By default, both camera stream and image files are scanned against all the 277 | supported code formats. Both `Html5QrcodeScanner` and `Html5Qrcode` classes can 278 | be configured to only support a subset of supported formats. Supported formats 279 | are defined in 280 | [enum Html5QrcodeSupportedFormats](https://github.com/mebjas/html5-qrcode/blob/master/src/core.ts#L14). 281 | 282 | ```ts 283 | enum Html5QrcodeSupportedFormats { 284 | QR_CODE = 0, 285 | AZTEC, 286 | CODABAR, 287 | CODE_39, 288 | CODE_93, 289 | CODE_128, 290 | DATA_MATRIX, 291 | MAXICODE, 292 | ITF, 293 | EAN_13, 294 | EAN_8, 295 | PDF_417, 296 | RSS_14, 297 | RSS_EXPANDED, 298 | UPC_A, 299 | UPC_E, 300 | UPC_EAN_EXTENSION, 301 | } 302 | ``` 303 | 304 | I recommend using this only if you need to explicitly omit support for certain 305 | formats or want to reduce the number of scans done per second for performance 306 | reasons. 307 | 308 | #### Scanning only QR code with `Html5Qrcode` 309 | ```js 310 | const html5QrCode = new Html5Qrcode( 311 | "reader", { formatsToSupport: [ Html5QrcodeSupportedFormats.QR_CODE ] }); 312 | const qrCodeSuccessCallback = (decodedText, decodedResult) => { 313 | /* handle success */ 314 | }; 315 | const config = { fps: 10, qrbox: { width: 250, height: 250 } }; 316 | 317 | // If you want to prefer front camera 318 | html5QrCode.start({ facingMode: "user" }, config, qrCodeSuccessCallback); 319 | ``` 320 | 321 | #### Scanning only QR code and UPC codes with `Html5QrcodeScanner` 322 | ```js 323 | function onScanSuccess(decodedText, decodedResult) { 324 | // Handle the scanned code as you like, for example: 325 | console.log(`Code matched = ${decodedText}`, decodedResult); 326 | } 327 | 328 | const formatsToSupport = [ 329 | Html5QrcodeSupportedFormats.QR_CODE, 330 | Html5QrcodeSupportedFormats.UPC_A, 331 | Html5QrcodeSupportedFormats.UPC_E, 332 | Html5QrcodeSupportedFormats.UPC_EAN_EXTENSION, 333 | ]; 334 | const html5QrcodeScanner = new Html5QrcodeScanner( 335 | "reader", 336 | { 337 | fps: 10, 338 | qrbox: { width: 250, height: 250 }, 339 | formatsToSupport: formatsToSupport 340 | }, 341 | /* verbose= */ false); 342 | html5QrcodeScanner.render(onScanSuccess); 343 | ``` 344 | 345 | ## Experimental features 346 | The library now supports some experimental features which are supported in the 347 | library but not recommended for production usage either due to limited testing 348 | done or limited compatibility for underlying APIs used. Read more about it [here](/experimental.md). 349 | Some experimental features include: 350 | - [Support for BarcodeDetector JavaScript API](/experimental.md) 351 | 352 | ## How to modify and build 353 | 1. Code changes should only be made to [/src](./src) only. 354 | 355 | 2. Run `npm install` to install all dependencies. 356 | 357 | 3. Run `npm run-script build` to build JavaScript output. The output JavaScript distribution is built to [/dist/html5-qrcode.min.js](./dist/html5-qrcode.min.js). If you are developing on Windows OS, run `npm run-script build-windows`. 358 | 359 | 4. Testing 360 | - Run `npm test` 361 | - Run the tests before sending a pull request, all tests should run. 362 | - Please add tests for new behaviors sent in PR. 363 | 364 | 5. Send a pull request 365 | - Include code changes only to `./src`. **Do not change `./dist` manually.** 366 | - In the pull request add a comment like 367 | ```text 368 | @all-contributors please add @mebjas for this new feature or tests 369 | ``` 370 | - For calling out your contributions, the bot will update the contributions file. 371 | - Code will be built & published by the author in batches. 372 | 373 | ## How to contribute 374 | You can contribute to the project in several ways: 375 | 376 | - File issue ticket for any observed bug or compatibility issue with the project. 377 | - File feature request for missing features. 378 | - Take open bugs or feature request and work on it and send a Pull Request. 379 | - Write unit tests for existing codebase (which is not covered by tests today). **Help wanted on this** - [read more](./tests). 380 | 381 | ## Support 💖 382 | 383 | This project would not be possible without all of our fantastic contributors and [sponsors](https://github.com/sponsors/mebjas). If you'd like to support the maintenance and upkeep of this project you can [donate via GitHub Sponsors](https://github.com/sponsors/mebjas). 384 | 385 | **Sponsor the project for priortising feature requests / bugs relevant to you**. (Depends on scope of ask and bandwidth of the contributors). 386 | 387 | 388 | webauthor@ 389 | ben-gy 390 | bujjivadu 391 | 392 | 393 | Help incentivise feature development, bug fixing by supporting the sponsorhip goals of this project. See [list of sponsered feature requests here](https://github.com/mebjas/html5-qrcode/wiki/Feature-request-sponsorship-goals#feature-requests). 394 | 395 | Also, huge thanks to following organizations for non monitery sponsorships 396 | 397 | 398 |
399 | 400 |
401 |
402 | 403 |
404 | 405 | 406 | ## Credits 407 | The decoder used for the QR code reading is from `Zxing-js` https://github.com/zxing-js/library
408 | -------------------------------------------------------------------------------- /compatibility.md: -------------------------------------------------------------------------------- 1 | # Compatibility list for tested device 2 | 3 | **THIS IS WORK IN PROGRESS**: If you have tested the library to work with a different device please 4 | send a pull request. 5 | 6 | ## Android 7 | | Device | Android OS | Browser | Inline scanning | File Scanning | Known issues | 8 | | --- | --- | --- | --- | --- | --- | 9 | | One Plus 6T | 10.0 | Chrome 81.0 | ![](./assets/done.png) | | - | 10 | 11 | ## IOS 12 | 13 | | Device | ISO | Browser | Inline scanning | File Scanning | Known issues | 14 | | --- | --- | --- | --- | --- | --- | 15 | | IPhone 11 | 13.4 | Safari 13.1 | | | Not working | 16 | | IPhone XS | 13.4 | Safari 13.1 | ![](./assets/done.png) | | - | 17 | -------------------------------------------------------------------------------- /examples/electron/README.md: -------------------------------------------------------------------------------- 1 | # html5-qrcode with electron 2 |
3 | [www.electronjs.org](https://https://www.electronjs.org/) | `Support Level` = `Strong` 4 | 5 | ## How to build a `electronjs` app using `html5-qrcode` 6 | 7 | ### Download the latest library 8 | You can download this from [Github release page](https://github.com/mebjas/html5-qrcode/releases) or [npm](https://www.npmjs.com/package/html5-qrcode). And include this in `index.html`. 9 | 10 | ```html 11 | 12 | ``` 13 | 14 | ### And include the `html` placeholder 15 | ```html 16 |
17 | ``` 18 | 19 | ### And `javascript` initialization 20 | ```js 21 | function onScanSuccess(decodedText, decodedResult) { 22 | // Handle on success condition with the decoded message. 23 | console.log(`Scan result ${decodedText}`, decodedResult); 24 | } 25 | var html5QrcodeScanner = new Html5QrcodeScanner( 26 | "reader", { fps: 10, qrbox: 250 }); 27 | html5QrcodeScanner.render(onScanSuccess); 28 | ``` 29 | 30 | ## Run the app 31 | ```cmd 32 | npm start 33 | ``` -------------------------------------------------------------------------------- /examples/html5/README.md: -------------------------------------------------------------------------------- 1 | # html5-qrcode without any external frameworks 2 | 3 | ## Include the js library in your project 4 | ```html 5 | 6 | ``` 7 | 8 | ## Add a placeholder in html 9 | ```html 10 |
11 |
12 | ``` 13 | 14 | ## Init in javascript 15 | 16 | ```js 17 | var resultContainer = document.getElementById('qr-reader-results'); 18 | var lastResult, countResults = 0; 19 | 20 | function onScanSuccess(decodedText, decodedResult) { 21 | if (decodedText !== lastResult) { 22 | ++countResults; 23 | lastResult = decodedText; 24 | // Handle on success condition with the decoded message. 25 | console.log(`Scan result ${decodedText}`, decodedResult); 26 | } 27 | } 28 | 29 | var html5QrcodeScanner = new Html5QrcodeScanner( 30 | "qr-reader", { fps: 10, qrbox: 250 }); 31 | html5QrcodeScanner.render(onScanSuccess); 32 | ``` 33 | -------------------------------------------------------------------------------- /examples/html5/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | Html-Qrcode Demo 4 | 5 |
6 |
7 | 8 | 9 | 38 | 39 | 40 | -------------------------------------------------------------------------------- /examples/lit/README.md: -------------------------------------------------------------------------------- 1 | # html5-qrcode with lit 2 | 3 |
4 | [lit.dev](https://lit.dev/) 5 | 6 | ## How to create a `lit` component for `html5-qrcode` 7 | 8 | ### Create the component in JavaScript 9 | 10 | ```js 11 | import { html, css, LitElement } from "https://unpkg.com/lit?module"; 12 | import { Html5QrcodeScanner } from "https://unpkg.com/html5-qrcode?module"; 13 | 14 | export class QRCodeScanner extends LitElement { 15 | render() { 16 | return html` 17 |
18 |
${this.decodedText}
19 |
${this.errorMessage}
20 | `; 21 | } 22 | 23 | firstUpdated() { 24 | const onScanSuccess = (decodedText, decodedResult) => { 25 | // handle the scanned code as you like 26 | this.decodedText = decodedText; 27 | }; 28 | 29 | const onScanFailure = (errorMessage, error) => { 30 | // handle scan failure, usually better to ignore and keep scanning 31 | this.errorMessage = errorMessage; 32 | }; 33 | 34 | const config = { 35 | fps: 10, 36 | qrbox: { 37 | width: 350, 38 | height: 250, 39 | }, 40 | }; 41 | 42 | const reader = this.shadowRoot.querySelector("#reader"); 43 | const scanner = new Html5QrcodeScanner(reader, config); 44 | 45 | scanner.render(onScanSuccess, onScanFailure); 46 | } 47 | } 48 | 49 | customElements.define("qrcode-scanner", QRCodeScanner); 50 | ``` 51 | 52 | ### Create the component in TypeScript 53 | 54 | ```ts 55 | import { css, html, LitElement, TemplateResult } from 'lit'; 56 | import { customElement } from 'lit/decorators/custom-element.js'; 57 | import { query } from 'lit-element'; 58 | import { Html5QrcodeError, Html5QrcodeResult } from 'html5-qrcode/esm/core'; 59 | import { Html5QrcodeScanner } from 'html5-qrcode'; 60 | 61 | @customElement('qrcode-scanner') 62 | export class QRCodeScanner extends LitElement { 63 | @query('#reader') 64 | reader: HTMLElement; 65 | 66 | protected render(): TemplateResult { 67 | return html`
`; 68 | } 69 | 70 | protected firstUpdated(): void { 71 | const onScanSuccess = ( 72 | decodedText: string, 73 | decodedResult: Html5QrcodeResult 74 | ) => { 75 | // handle the scanned code as you like 76 | console.log(`Code matched = ${decodedText}`, decodedResult); 77 | }; 78 | 79 | const onScanFailure = (errorMessage: string, error: Html5QrcodeError) => { 80 | // handle scan failure, usually better to ignore and keep scanning 81 | console.warn(`Code scan error = ${errorMessage}`, error); 82 | }; 83 | 84 | const config = { 85 | fps: 10, 86 | qrbox: { 87 | width: 350, 88 | height: 250, 89 | }, 90 | }; 91 | 92 | const scanner = new Html5QrcodeScanner( 93 | this.reader, 94 | config, 95 | false 96 | ); 97 | 98 | scanner.render(onScanSuccess, onScanFailure); 99 | } 100 | } 101 | 102 | declare global { 103 | interface HTMLElementTagNameMap { 104 | 'qrcode-scanner': QRCodeScanner; 105 | } 106 | } 107 | 108 | ``` 109 | 110 | ### Include the component in your HTML page 111 | 112 | ```html 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | ``` 121 | 122 | ### Contributors 123 | | Name | Profile| 124 | | ----- | ------ | 125 | | Markus Fürer | [@kusigit](https://github.com/kusigit) | 126 | -------------------------------------------------------------------------------- /examples/lit/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /examples/lit/qrcode-scanner.js: -------------------------------------------------------------------------------- 1 | import { html, css, LitElement } from "https://unpkg.com/lit?module"; 2 | import { Html5QrcodeScanner } from "https://unpkg.com/html5-qrcode?module"; 3 | 4 | export class QRCodeScanner extends LitElement { 5 | static styles = css` 6 | :host { 7 | display: block; 8 | } 9 | `; 10 | 11 | render() { 12 | return html` 13 |
14 |
${this.decodedText}
15 |
${this.errorMessage}
16 | `; 17 | } 18 | 19 | firstUpdated() { 20 | const onScanSuccess = (decodedText, decodedResult) => { 21 | // handle the scanned code as you like 22 | this.decodedText = decodedText; 23 | }; 24 | 25 | const onScanFailure = (errorMessage, error) => { 26 | // handle scan failure, usually better to ignore and keep scanning 27 | this.errorMessage = errorMessage; 28 | }; 29 | 30 | const config = { 31 | fps: 10, 32 | qrbox: { 33 | width: 350, 34 | height: 250, 35 | }, 36 | }; 37 | 38 | const reader = this.shadowRoot.querySelector("#reader"); 39 | const html5QrcodeScanner = new Html5QrcodeScanner(reader, config); 40 | 41 | html5QrcodeScanner.render(onScanSuccess, onScanFailure); 42 | } 43 | } 44 | 45 | customElements.define("qrcode-scanner", QRCodeScanner); 46 | -------------------------------------------------------------------------------- /examples/lit/qrcode-scanner.ts: -------------------------------------------------------------------------------- 1 | import { css, html, LitElement, TemplateResult } from 'lit'; 2 | import { customElement } from 'lit/decorators/custom-element.js'; 3 | import { query } from 'lit-element'; 4 | import { Html5QrcodeError, Html5QrcodeResult } from 'html5-qrcode/esm/core'; 5 | import { Html5QrcodeScanner } from 'html5-qrcode'; 6 | 7 | @customElement('qrcode-scanner') 8 | export class QRCodeScanner extends LitElement { 9 | static styles = [ 10 | css` 11 | :host { 12 | display: block; 13 | } 14 | `, 15 | ]; 16 | 17 | @query('#reader') 18 | reader: HTMLElement; 19 | 20 | protected render(): TemplateResult { 21 | return html`
`; 22 | } 23 | 24 | protected firstUpdated(): void { 25 | const onScanSuccess = ( 26 | decodedText: string, 27 | decodedResult: Html5QrcodeResult 28 | ) => { 29 | // handle the scanned code as you like 30 | console.log(`Code matched = ${decodedText}`, decodedResult); 31 | }; 32 | 33 | const onScanFailure = (errorMessage: string, error: Html5QrcodeError) => { 34 | // handle scan failure, usually better to ignore and keep scanning 35 | console.warn(`Code scan error = ${errorMessage}`, error); 36 | }; 37 | 38 | const config = { 39 | fps: 10, 40 | qrbox: { 41 | width: 350, 42 | height: 250, 43 | }, 44 | }; 45 | 46 | const html5QrcodeScanner = new Html5QrcodeScanner( 47 | this.reader, 48 | config, 49 | false 50 | ); 51 | 52 | html5QrcodeScanner.render(onScanSuccess, onScanFailure); 53 | } 54 | } 55 | 56 | declare global { 57 | interface HTMLElementTagNameMap { 58 | 'qrcode-scanner': QRCodeScanner; 59 | } 60 | } 61 | -------------------------------------------------------------------------------- /examples/vuejs/README.md: -------------------------------------------------------------------------------- 1 | # html5-qrcode with vue.js 2 |
3 | [vuejs.org](https://vuejs.org/) | `Support Level` = `Strong` 4 | 5 | ## How to create a `vue.js` component for `html5-qrcode` 6 | 7 | ### Include the js library in your project 8 | 9 | ```html 10 | 11 | ``` 12 | 13 | ### Create a `qrcode-scanner` component 14 | 15 | ```js 16 | Vue.component('qrcode-scanner', { 17 | props: { 18 | qrbox: { 19 | type: Number, 20 | default: 250 21 | }, 22 | fps: { 23 | type: Number, 24 | default: 10 25 | }, 26 | }, 27 | template: `
`, 28 | mounted () { 29 | const config = { 30 | fps: this.fps, 31 | qrbox: this.qrbox, 32 | }; 33 | const html5QrcodeScanner = new Html5QrcodeScanner('qr-code-full-region', config); 34 | html5QrcodeScanner.render(this.onScanSuccess); 35 | }, 36 | methods: { 37 | onScanSuccess (decodedText, decodedResult) { 38 | this.$emit('result', decodedText, decodedResult); 39 | } 40 | } 41 | }); 42 | ``` 43 | 44 | ### Usage 45 | 46 | ```vue 47 | 55 | 56 | 65 | ``` 66 | 67 | ### Contributors 68 | | Name | Profile| 69 | | ----- | ------ | 70 | | Jofferson Ramirez Tiquez | [@jofftiquez](https://github.com/jofftiquez) | 71 | -------------------------------------------------------------------------------- /examples/vuejs/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | HTML5 QR Code with Vue js 8 | 9 | 10 | 11 | 12 | 13 |
14 |
{{ header }}
15 |
16 | 20 | 21 |
22 | 23 |
24 | 25 | 26 | 27 | 64 | 65 | 66 | 67 | -------------------------------------------------------------------------------- /examples/vuejs/style.css: -------------------------------------------------------------------------------- 1 | body { 2 | margin: 0; /* no unit */ 3 | padding: 0; /* no unit */ 4 | } 5 | 6 | .header { 7 | padding: 10px; 8 | background: black; 9 | color: white; 10 | } 11 | 12 | .section { 13 | padding: auto; 14 | } 15 | -------------------------------------------------------------------------------- /experimental.md: -------------------------------------------------------------------------------- 1 | # Experimental features 2 | Some of the features that are supported by the library but not officially 3 | recommended to be used across devices. If you find any of the features useful, 4 | please feel free to use them at your own risk, they are configurable in the 5 | library. In future, based on the support level and compatibility, some of 6 | these features will get upgraded to general feature list. 7 | 8 | ## Using experimental native BarcodeDetector API 9 | 10 | > **Update** This config has now been graduated to `Html5QrcodeConfigs` and deprecated from experimental config. This feature is now enabled by default. 11 | 12 | ### performance 13 | 14 | Native scanning library seems to be giving better performance for scanning QR 15 | codes than with Zxing library. 16 | 17 | | Device | With ZXing | With BarcodeDecoder | 18 | |--|--|--| 19 | | Macbook Pro 16, Google Chrome | 21 ms | 10 ms| 20 | | Pixel 4 Google Chrome | 56 ms | 23 ms | 21 | | Pixel 4a Google Chrome | 92 ms| 47.3 ms | 22 | | (low end) Android Device Google Chrome | 373 ms | 77.5 ms| 23 | 24 | Not supported on: 25 | - Macbook Pro 16, Safari (macOS Big Sur) 26 | 27 | ### More references 28 | - [https://web.dev/shape-detection/#barcodedetector](https://web.dev/shape-detection/#barcodedetector) 29 | -------------------------------------------------------------------------------- /minified/readme.md: -------------------------------------------------------------------------------- 1 | # Generated code, do not modify manually. 2 | 3 | - All files in this directory are minified from source code in the project hosted at [src](../src). 4 | - Generated files should be supported in all major browsers. 5 | 6 | ## [deprecation notice] 7 | Its not recommended to use the minified script from this directory directly. These contain the script based on top of the tree and may not have been tested for production. 8 | 9 | ### Recommended ways to use 10 | #### Using directly in browser without any loader 11 | If you are not using any loader, you can get the latest UMD javascript code in production from [https://unpkg.com/html5-qrcode](https://unpkg.com/html5-qrcode). 12 | 13 | ```js 14 |