Showing 63 open source projects for "qr codes"

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  • 1
    Mini QR

    Mini QR

    Create & scan cute qr codes easily

    Mini QR is a web app focused on making QR codes feel friendly and design-forward, combining a polished QR generator with a built-in scanner so you can both create and decode codes in the same place. It emphasizes customization so the QR you generate can match a brand, event theme, or personal style, including color and styling controls, framed layouts with labels, and the ability to add a logo image.
    Downloads: 12 This Week
    Last Update:
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  • 2
    Open QR Code

    Open QR Code

    Open QR Code is an open-source, cross-platform app

    ...Users can generate QR codes from any text input, save them to their gallery, share them directly from the app, and scan QR codes to retrieve encoded information. Whether you're on Android, Windows, or the Web, you can create and share QR codes or scan them with a single click.
    Downloads: 19 This Week
    Last Update:
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  • 3
    Endroid QR Code

    Endroid QR Code

    QR Code Generator

    Endroid QR Code is a PHP library that allows developers to generate QR codes with customizable parameters. It supports creating QR codes in various formats, including PNG and SVG, and offers options for encoding URLs, text, or other data. The library is flexible and easy to integrate into applications that require QR code generation, such as ticketing systems or payment gateways.
    Downloads: 10 This Week
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  • 4
    PHP QR Code

    PHP QR Code

    A PHP QR Code generator and reader with a user-friendly API

    chillerlan/php-qrcode is a modern, flexible PHP library for generating QR codes. It supports various customization options such as size, encoding, error correction, and logo embedding. The library is PSR-compliant and built for ease of use in modern PHP projects, making it suitable for generating QR codes in web apps, receipts, and authentication systems.
    Downloads: 5 This Week
    Last Update:
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  • 5
    Extract TOTP/HOTP secrets

    Extract TOTP/HOTP secrets

    Extract one time password (OTP) secrets from QR codes

    The Python script extract_otp_secrets.py extracts one-time password (OTP) secrets from QR codes exported by two-factor authentication (2FA) apps such as "Google Authenticator".
    Downloads: 2 This Week
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  • 6
    QR Code generator library

    QR Code generator library

    High-quality QR Code generator library in Java, TypeScript/JavaScript

    This project aims to be the best, clearest library for generating QR Codes. My primary goals are flexible options and absolute correctness. The secondary goals are compact implementation size and good documentation comments. This work is an independent implementation based on reading the official ISO specification documents. I believe that my library has a more intuitive API and shorter code length than competing libraries out there.
    Downloads: 23 This Week
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  • 7
    ZXingLite

    ZXingLite

    Simplified version of ZXing, optimized to scan codes to generate QR

    ZXingLite for Android is a simplified and extremely fast version of ZXing. Based on the ZXing library, it optimizes the functions of scanning codes and generating QR codes/barcodes. The scanning interface fully supports customization, and one line of code can also use the default scanning function. In short, everything you want is here. By inheriting CaptureActivity or CaptureFragment and customizing the layout. (Applicable to most scenarios, and you don’t need to care about the code scanning related logic, you need to override the getLayoutId method when customizing the layout) Implementation examples: CustomCaptureActivity and QRCodeActivity. ...
    Downloads: 6 This Week
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  • 8
    hiddify-app

    hiddify-app

    Multi-platform auto-proxy client, supporting Sing-box, X-ray, TUIC

    Hiddify is a comprehensive VPN and proxy client designed to facilitate secure internet access and bypass censorship. It supports advanced proxy protocols like V2Ray, Shadowsocks, and Trojan, offering configuration through QR codes, links, and subscription services. Hiddify aims to be user-friendly while also catering to power users with customizable options, making it a popular choice in regions with restricted internet access.
    Downloads: 684 This Week
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  • 9
    Node Thermal Printer

    Node Thermal Printer

    Node.js module for thermal printers command line printing

    node-thermal-printer is a Node.js library that enables communication with thermal receipt printers using ESC/POS commands. It is designed for point-of-sale (POS) applications, allowing developers to generate receipts, barcodes, QR codes, and formatted text.
    Downloads: 2 This Week
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  • 10
    Authenticator

    Authenticator

    Authenticator generates 2-Step Verification codes in your browser

    Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts. Always keep a backup of your secrets in a safe location. Encrypting your secrets is strongly recommended, especially if you are logged into a Google account. Back up your secrets to a file, Google Drive, Microsoft OneDrive, or Dropbox. Sync your secrets with your Google Account. Available for Chrome, Firefox, and Microsoft Edge. Import data from...
    Downloads: 4 This Week
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  • 11
    Memvid

    Memvid

    Video-based AI memory library. Store millions of text chunks in MP4

    Memvid encodes text chunks as QR codes within MP4 frames to build a portable “video memory” for AI systems. This innovative approach uses standard video containers and offers millisecond-level semantic search across large corpora with dramatically less storage than vector DBs. It's self-contained—no DB needed—and supports features like PDF indexing, chat integration, and cloud dashboards.
    Downloads: 11 This Week
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  • 12
    Google Authenticator PAM Library

    Google Authenticator PAM Library

    Example PAM module demonstrating two-factor authentication

    ...It plugs into PAM stacks for services like SSH, su, or desktop display managers, prompting users for a time-based (TOTP) or counter-based (HOTP) code after their password. A lightweight enrollment program bootstraps each account by generating a secret, printing a QR code, and writing per-user configuration with safe file permissions. Because verification happens locally, codes work offline and do not depend on any Google service, which suits high-security and air-gapped environments. Administrators can tune skew tolerance, rate limiting, emergency scratch codes, and which PAM control flags enforce 2FA for specific users or groups. ...
    Downloads: 1 This Week
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  • 13
    v2flyNG

    v2flyNG

    A V2Ray client for Android, support v2fly core

    ...It focuses on making modern protocols—such as VMess, VLESS, and Trojan—accessible without requiring shell access or manual config editing. Profiles can be added via subscription links or QR codes, and the app merges and updates them on schedule to keep node lists fresh. Per-app proxy controls allow you to include or exclude specific applications, which is useful for balancing privacy with bandwidth and latency. The client exposes routing controls, TLS settings, custom DNS, and UDP handling so advanced users can fine-tune behavior. ...
    Downloads: 6 This Week
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  • 14
    Ada Bar Codes

    Ada Bar Codes

    Bar Code (1D or 2D) generator in pure Ada

    The project Ada Bar Codes provides a framework for generating various types of bar codes (1D, or 2D, like QR codes) on different output formats and devices. Alire crate: https://alire.ada.dev/crates/bar_codes Mirror: https://github.com/zertovitch/ada-bar-codes
    Downloads: 3 This Week
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  • 15
    my-tv-0

    my-tv-0

    My TV·〇 TV video playback device can customize the TV source

    ...It is designed to run on Android-based devices, including TV boxes and smart TVs, providing a simple interface for browsing and switching between channels. The application emphasizes user control, allowing remote configuration through QR codes or local network endpoints, which simplifies setup and management. It also includes features such as favorites, channel grouping, and automatic updates of video sources upon startup. The system supports local and remote video sources, making it adaptable for both personal media libraries and live streaming setups.
    Downloads: 15 This Week
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  • 16
    Cake Wallet

    Cake Wallet

    The open source repository for Cake Wallet

    Cake Wallet is an open source, non-custodial, and private multi-currency crypto wallet for Android, iOS, macOS, and Linux. Easily and safely store, send, receive, and exchange your cryptocurrency. There is no intermediary to surveil or censor your transactions. Full support for separate wallets, subaddresses, and accounts. Back up your wallets locally or to the cloud, and connect to remote nodes of your choice (even your own). You can easily exchange XMR, BTC, ETH, LTC, USDT and many more...
    Downloads: 100 This Week
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  • 17
    2FAS Auth Browser Extension

    2FAS Auth Browser Extension

    Source code for 2FAS Auth Browser Extension

    ...The extension communicates securely with companion mobile or desktop clients to fetch or synchronize token data, respecting encryption and privacy boundaries so that secrets are never exposed to the extension itself without user consent. It also lets users manage or view registered accounts, add new ones by scanning QR codes via companion apps, and handle token organization from within browser UI elements.
    Downloads: 1 This Week
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  • 18
    EcoPaste

    EcoPaste

    Open source clipboard management tools for Windows, Macos and Linux

    ...Supports plain text, rich text, HTML, images, and files. Automatically groups clipboard content by type, managing your clipboard content efficiently. Recognize text and QR codes in seconds. Quickly copy-recognized content via the context menu, enabling convenient offline text recognition.
    Downloads: 10 This Week
    Last Update:
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  • 19
    BDE QR Generator

    BDE QR Generator

    Offline QR code generator for BDE

    Most QR codes are just text. When scanned with a USB reader, the reader just types out the text really quickly. It's difficult to type in a 55-character bitlocker key. This tool will create a QR code from a bitlocker key so you can plug a 2D barcode scanner into the affected computer, then scan the picture from the program. There's a section to allow you to create a QR with some cmd code to simplify the unlock and even delete a file.
    Downloads: 0 This Week
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  • 20
    DScan

    DScan

    Uploads the content to IPFS and generates decentralized QR codes

    DScan is a decentralized storage and file sharing tool. DScan allows you to quickly upload files as well as folders to IPFS by using web3.storage and receive a "decentralized QR code" with IPFS CID. Later you can customize and share the QR code or hosted gateway link with everyone for easy and decentralized file sharing. Because of web3.storage, the content can be accessed over IPFS without the user installing and setting up a local instance of Kubo.
    Downloads: 0 This Week
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  • 21
    h5ai

    h5ai

    HTTP web server index for Apache httpd, lighttpd and nginx

    h5ai is a modern file indexer for HTTP web servers with a focus on your files. Directories are displayed in an appealing way and browsing them is enhanced by different views, a breadcrumb and a tree overview. Initially, h5ai was an acronym for HTML5 Apache Index but now it supports other web servers too. Requires PHP 7.0+ and works fine with Apache httpd, lighttpd and nginx. Best user experience with the latest versions of Chromium-based browsers, Firefox, Safari and Edge, but a static...
    Downloads: 7 This Week
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  • 22
    QRTxt

    QRTxt

    QR Code Generator

    QRTxt is just a personal project. It's a very simple QR code generator. I had two major goals in creating this project: - Make it simple and user friendly - Provide useful feedback instead of just crashing without warning if a user tries to enter more characters than a QR code supports. I digitally sign some files in my releases. If you'd like to verify those signatures, you can find my PGP/GPG keys at: https://marcusadams.me/keys.html If you'd like to donate there's several ways...
    Downloads: 2 This Week
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  • 23
    AirGap Wallet

    AirGap Wallet

    The AirGap Wallet is installed on an everyday smartphone

    AirGap is a crypto wallet system that lets you secure cypto assets with one secret on an offline device. The AirGap Vault application is installed on a dedicated device that has no connection to any network, thus it is air gapped. The AirGap Wallet is installed on your everyday smartphone. Protect your crypto and store your private keys offline. It’s time to set up your safe place for your coins and get rewards. Based on a two-device approach, increasing security and usability with you in...
    Downloads: 1 This Week
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  • 24
    Umi-OCR

    Umi-OCR

    Free OCR Software: No internet required, easy to use.

    Support screenshots/pasting/batch importing of images, paragraph layout/excluding watermarks, scanning/generating QR codes. No need for internet connection throughout the entire process, with built-in multi language recognition library. 支持截屏/粘贴/批量导入图片,支持段落排版/排除水印,扫描/生成二维码。全程无需联网,内置多国语言识别库。
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    Downloads: 565 This Week
    Last Update:
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  • 25
    Burner wallet

    Burner wallet

    Ephemeral web wallet for fast crypto cash

    ...The compiled application is available in BurnerWallet.zip. You can store any amount of crypto, but treat it like cash: convenient for daily payments, less secure for large holdings. Use QR codes to send/receive funds, create payment links, swap between ETH/DAI/xDai, and even chat peer-to-peer with encryption. Keys live in browser storage and app and disappear when you close the tab - perfect for events, food trucks, or instant dApp onboarding. Sweep funds to cold storage when you're done.
    Downloads: 23 This Week
    Last Update:
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