QR Code Development
QR code generation and reading for developers. Libraries, APIs, batch generation, server-side rendering, and integrating QR codes into web and mobile applications.
QR Code Generation Libraries: Python, JavaScript, and More
Comprehensive comparison of QR code generation libraries across Python (qrcode, segno), JavaScript (qrcode.js), Go, Rust, and Java.
Generating QR Codes in Python
Python QR code generation tutorial: qrcode and segno libraries, error correction, SVG/PNG output, and Django integration.
Generating QR Codes in JavaScript
Browser and Node.js QR code generation: qrcode.js, qr-code-styling, and server-side rendering for React and Vue.
QR Code Reading and Decoding in Code
Programmatic QR code reading: zbar, pyzbar, jsQR, and OpenCV. Camera integration, batch processing, and error handling.
Server-Side QR Code Generation for Web Apps
Generating QR codes on the server: dynamic image endpoints, caching strategies, SVG vs PNG trade-offs, and CDN distribution.
Client-Side QR Code Generation and Scanning
Browser-based QR codes: Canvas/SVG rendering, WebRTC camera scanning, progressive enhancement, and offline support.
Batch QR Code Generation via API
Generating thousands of QR codes programmatically: REST APIs, rate limiting, async processing, and file management.
QR Code Generation with Custom Design: Developer Guide
Programmatic QR code customisation: module shape rendering, colour gradients, logo embedding, and SVG manipulation.
QR Codes in Mobile Apps: Native Generation and Scanning
QR code integration in iOS (Swift, Vision) and Android (Kotlin, ML Kit): generation, camera scanning, and UX patterns.
Building a QR Code Shortener Service
Architecture guide for building a dynamic QR code service: URL shortener, redirect engine, analytics pipeline, and scaling.
QR Code Generation in CI/CD Pipelines
Automating QR code generation in CI/CD: build artifacts, test environment URLs, deployment tracking, and release notes.
QR Code Encoding Algorithm: Step-by-Step Implementation
Implement a QR code encoder from scratch: data analysis, mode selection, error correction calculation, masking, and module placement.
QR Code Performance: Generation and Scanning Speed
Optimising QR code generation and scanning speed: library benchmarks, caching, image preprocessing, and hardware acceleration.
Testing QR Code Generation: Unit and Integration Tests
Testing strategies for QR code generators: output validation, round-trip testing, visual regression, and edge cases.
QR Codes and Accessibility APIs
Making QR code features accessible: screen reader support, alt text generation, keyboard navigation, and ARIA attributes.