phoboslab/qoi

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

7522 stars · 379 forks observed · 2026-08-28

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

QOI is the 'Quite OK Image Format', a fast, lossless image compression format with a single-file MIT-licensed C/C++ reference implementation. It trades slightly worse compression ratios than PNG for much higher encoding/decoding throughput.

Use cases

• compress images losslessly faster than png
• encode and decode qoi image files in c or c++
• convert png images to qoi format
• benchmark image codec throughput against png and stb
• embed a simple image codec in a game or app
• port a lossless image format to other languages

When to choose

• you need very fast lossless image encoding/decoding and can accept slightly larger files than PNG
• you want a tiny, dependency-free, single-file library that is easy to read and port
• you need a stable, finalized image format guaranteed to stay compatible

When to avoid

• you need the best possible compression ratio rather than speed
• you need streaming encode/decode of images larger than 400 million pixels with minimal RAM
• you expect ongoing performance improvements or format changes, since the reference implementation intentionally stays simple and frozen

Facets

library · maturity stable

image-processing compression serialization image-processing graphics files cross-platform c cpp image-format lossless-compression single-file-library reference-implementation

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markdown · JSON · MCP: product_card(name="phoboslab/qoi")