# libjpeg-turbo/libjpeg-turbo

Main libjpeg-turbo repository

Repository: https://github.com/libjpeg-turbo/libjpeg-turbo
Canonical: https://ross.abutalabs.com/products/libjpeg-turbo
Homepage: https://libjpeg-turbo.org
Language: C
License: NOASSERTION
License Family: other
Last push: 2026-08-26T14:43:00+00:00

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 66, longevity 100
- inputs: {"age_days": 4055, "days_push": 7, "days_rel": 64, "gap_med": 94, "n_releases_24m": 8}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4401, forks 1172 (observed 2026-08-28T04:08:48.294327+00:00)

## What it is
libjpeg-turbo is a SIMD-accelerated JPEG image codec library that is API/ABI-compatible with libjpeg and generally 2-6x faster. It provides both the traditional libjpeg API and the simpler TurboJPEG API, plus a Java interface and colorspace extensions for 32-bit pixel buffers.

## Use cases
- compress and decompress JPEG images at high speed
- replace libjpeg in an application for faster JPEG encoding/decoding
- generate planar YUV images from JPEG data
- perform lossless transforms on JPEG images
- decode JPEGs into 32-bit RGBX/XBGR pixel buffers
- use JPEG compression from Java

## When to choose
- you need fast, standards-compliant JPEG compression/decompression
- you want drop-in libjpeg API compatibility with better performance
- you need a mature, widely deployed JPEG codec across platforms

## When to avoid
- you need non-standard SmartScale format from libjpeg v8+
- you want better compression ratios rather than speed (consider mozjpeg)
- you need codecs for formats other than JPEG

## Facets
- artifact type: library
- maturity: stable
- function: image-processing, graphics, compression
- domain: image-processing, graphics, cross-platform
- platform: cross-platform, windows, cpp, c, jvm
- tags: jpeg, codec, simd, turbojpeg, image-compression, linux, macos

## Member repositories
- libjpeg-turbo/libjpeg-turbo (main) score 88

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:48.294327+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:21:08.488246+00:00, confidence not recorded.
  - readme: https://github.com/libjpeg-turbo/libjpeg-turbo (fetched 2026-08-28T04:08:48.294327+00:00, sha 8cb2b33d8aa5)
  - homepage: https://libjpeg-turbo.org (fetched 2026-08-29T09:09:09.327697+00:00, sha 610fb5b81cb3)
  - site_page: https://libjpeg-turbo.org/About/ProfessionalServices (fetched 2026-08-29T09:09:09.330263+00:00, sha 68f8db15c7c0)
  - site_page: https://libjpeg-turbo.org/About/Sponsors (fetched 2026-08-29T09:09:09.332499+00:00, sha c8095a99fefd)
  - site_page: https://libjpeg-turbo.org/About/SIMDCoverage (fetched 2026-08-29T09:09:09.334344+00:00, sha 59cd4615feec)
  - site_page: https://libjpeg-turbo.org/About/TurboJPEG (fetched 2026-08-29T09:09:09.336177+00:00, sha 1a847751d10f)
  - site_page: https://libjpeg-turbo.org/About/MailingLists (fetched 2026-08-29T09:09:09.338191+00:00, sha 1239bb1c943d)
  - site_page: https://libjpeg-turbo.org/Documentation/OfficialBinaries (fetched 2026-08-29T09:09:09.340680+00:00, sha d5e9d39d0f68)
  - site_page: https://libjpeg-turbo.org/Documentation/Documentation (fetched 2026-08-29T09:09:09.343022+00:00, sha 81c92ae72cc1)
  - site_page: https://libjpeg-turbo.org/About/Performance (fetched 2026-08-29T09:09:09.344723+00:00, sha fcdee6ebdaf5)
- Data as of 2026-08-30T08:39:29.467469+00:00.