libjxl/libjxl
JPEG XL image format reference implementation observed · 2026-08-28
Health v2 · maintenance only
96/100
- Activity 99
- Release rhythm 91
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 0
- age_days: 2022
- days_rel: 63
- days_push: 7
- n_releases_24m: 12
Adoption not part of the score
3637 stars · 386 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
libjxl is the reference implementation of the JPEG XL (ISO/IEC 18181) image format, providing both an encoder (cjxl) and decoder (djxl) as a C++ library and command-line tools. It supports lossy and lossless compression of images and is integrated into many applications that support JPEG XL.
Use cases
- convert images to jpeg xl format
- decode jxl files
- compress photos losslessly
- batch transcode jpeg to jpeg xl
- integrate jpeg xl support into an application
- benchmark image codecs
When to choose
- you need standards-compliant JPEG XL encoding or decoding
- you want better compression than JPEG/WebP/AVIF for images
- you need lossless image compression with good ratios
- you are building an image viewer or editor with JXL support
When to avoid
- you need broad ecosystem support for older browsers or legacy software
- you need a stable, frozen API - the library API and CLI options are still subject to change
- you only need simple PNG/JPEG handling without new formats
Facets
library · maturity active
image-processing compression image-processing photography files windows cpp cli cross-platform jpeg-xl jxl encoder decoder codec lossless-compression lossy-compression reference-implementation linux macos
1 source
- readme: https://github.com/libjxl/libjxl · fetched 2026-08-28 · ff60798443b2
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| libjxl/libjxl | main | 96 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem