fukuchi/libqrencode
A fast and compact QR Code encoding library observed · 2026-10-14
Health v2 · maintenance only
40/100
- Activity 38
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5716
- days_rel: n/a
- days_push: 375
- n_releases_24m: 0
Adoption not part of the score
3040 stars · 621 forks observed · 2026-10-14
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
libqrencode is a fast, compact C library for encoding data into QR Code symbols, outputting raw bitmap arrays that applications can render directly. It also ships a command-line utility that generates QR Code images in various formats.
Use cases
- generate QR codes in a C or C++ application
- encode a URL or text as a QR code bitmap
- create QR code images from the command line
- embed QR code generation in an embedded or low-dependency project
- generate Micro QR Codes
- render QR codes without external runtime dependencies
When to choose
- you need a lightweight, dependency-free QR encoder in C/C++
- you want raw bitmap data to render yourself rather than image files
- you need a simple CLI tool to produce QR code images
- you need structured-append or kanji-mode QR support
When to avoid
- you need ECI or FNC1 modes, which are unsupported
- you need QR Code model 1 (deprecated)
- you want a high-level library with built-in image rendering in a managed language
- you need Micro QR Codes in production, as support is experimental
Facets
library · maturity stable
image-processing cli sdk developer-tools cross-platform graphics c windows cross-platform cli qr-code barcode qrcode-generator c-library 2d-barcode linux macos
2 sources
- readme: https://github.com/fukuchi/libqrencode · fetched 2026-10-14 · aa5a639895b7
- homepage: https://fukuchi.org/works/qrencode/ · fetched 2026-08-29 · c848bca209ec
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| fukuchi/libqrencode | main | 40 |
For agents
markdown · JSON · MCP: product_card(name="fukuchi/libqrencode")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem