qr-codes

Extract one time password (OTP) secrets from QR codes exported by two-factor authentication (2FA) apps such as "Google Authenticator". The exported QR codes from authentication apps can be captured by camera, read from images, or read from text files. The secrets can be exported to JSON or CSV, or printed as QR codes to console.

python security json otp csv protobuf qrcode two-factor totp google-authenticator recovery proto3 mfa two-factor-authentication tfa qr-codes otpauth 2fa security-tools standwithukraine

UpdatedOct 5, 2025
Python

code-kotis /qr-code-scanner

Star1.1k

📠 A simple, fast and useful progressive web application

pwa progressive-web-app scanner qrcode barcode qr-code qr-codes qr qrcode-scanner qrcode-reader barcode-scanner pwa-apps

UpdatedJan 2, 2021
JavaScript

kevmoo /qr.dart

Star391

Dart QR code generation library.

dart qr-codes

UpdatedOct 1, 2025
Dart

piderman314 /bardecoder

Star288

Detect and decode QR Codes, written in 100% Rust.

rust qrcode qr-code qr-codes qrcode-scanner qrcode-reader

UpdatedFeb 13, 2024
Rust

AquiGorka /webrtc-qr

Star187

WebRTC Connect Experiment -https://aquigorka.com/webrtc-qr/

serverless webrtc p2p qr-codes signalling

UpdatedDec 10, 2022
JavaScript

0x4f53 /Wristkey

Sponsor

Star187

A free and open-source 2FA app for smartwatches.

android kotlin security adb watch authenticator google-authenticator android-wear smartwatch qr-codes 2fa android-phone wearables bitwarden andotp wear-os otps 2fa-codes aegis-authenticator

UpdatedAug 19, 2024
Kotlin

za3k /qr-backup

Star158

Paper backup of files using QR codes

qr-codes paper-backups

UpdatedAug 28, 2025
Python

make-github-pseudonymous-again /awesome-qr-code

Star134

A curated list of awesome QR code libraries, software and resources

lists awesome qrcode resources qr-code collections awesome-list qr-codes qrcodes

UpdatedJun 13, 2024

aruZeta /QRgen

Sponsor

Star113

A QR code generation library.

nim qrcode qr-code qr-generator nim-language qr-codes qr qrcode-generator nim-lang nimble qr-code-generator

UpdatedJan 29, 2024
Nim

BenSouchet /barcode-datasets

Sponsor

Star86

A list of available Barcode & QR Code Datasets

photos pictures list awesome image database images qrcode barcode qr-code dataset awesome-list datasets ean13 qr-codes ean8 photographs barcodes symbologies symbology

UpdatedJul 9, 2024

evrythng /scanthng.js

Star76

A JS library enabling scanning products directly from (mobile) browsers. Supports Image Recognition and more than 20 barcode types including UPC, EAN, QR, Digimarc and DataMatrix codes.

image-recognition gs1 evrythng upc qr-codes ean digimarc product-identifiers

UpdatedFeb 14, 2023
JavaScript

justjavac /qr-ascii

Star74

A small library to generate QR codes with ascii

ascii qrcode qr-code ascii-art ascii-graphics qrcoder-generator qr-generator qr-codes qr qrcodes qrcode-generator

UpdatedApr 21, 2017

Path-Check /paper-cred

Star63

Paper-first Verifiable Credentials Specification using QR Codes.

qr-codes verifiable-credentials uri-formats

UpdatedOct 15, 2021

id1945 /ngx-scanner-qrcode

Star60

This library is built to provide a solution scanner QR code. This library takes in raw images and will locate, extract and parse any QR code found within.