nayuki/QR-Code-generator

Health v2 · maintenance only

Flags: no_license no_readme

Adoption not part of the score

6728 stars · 1283 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A high-quality QR Code generator library implemented independently from the ISO/IEC 18004 (QR Code Model 2) specification, available in Java, TypeScript/JavaScript, Python, Rust, C++, and C. Each port is roughly 1000 lines of code with no dependencies beyond the standard library, supporting all 40 QR versions and all 4 error correction levels.

Use cases

• generate QR codes in Java
• create QR code images in Python
• generate QR codes in C++ without dependencies
• embed QR code generation in a Rust no_std/embedded project
• render QR codes as SVG or bitmap in JavaScript
• generate QR codes with custom error correction levels and mask patterns

When to choose

• you need a small, dependency-free, well-documented QR generator in one of the six supported languages
• you need full control over QR parameters like version range, error correction, mask, colors, and border
• correctness to the ISO QR Code Model 2 standard matters
• you target embedded or heap-constrained environments (Rust no-heap or C ports)

When to avoid

• you need to decode/read QR codes rather than generate them
• you need other barcode symbologies like Code 128, Data Matrix, or Aztec
• you need a license with explicit grant text - the repo metadata shows no license file, though the project states MIT

Facets

library · maturity stable

parser image-processing developer-tools developer-tools web-development cross-platform jvm python rust cpp c cross-platform qr-code qr-generator barcode no-dependencies mit-license multi-language javascript typescript

Member repositories

For agents

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