JPEG-XL Libjxl 0.12 Brings More Performance Optimizations
The JPEG-XL library libjxl has released version 0.12, featuring additional performance optimizations to improve encoding and decoding speeds for the JPEG-XL image format.
Background
JPEG-XL (libjxl) is a royalty-free next-generation image format designed to outperform JPEG in both compression efficiency and features (e.g., lossless transcoding from legacy JPEGs, HDR support, progressive decoding). Despite early promise, it stalled in 2022-2023 when Google Chrome and other browsers declined to add native support, limiting its mainstream adoption. Libjxl 0.12 is the latest reference encoder/decoder library; the focus here is on ongoing performance work by the open-source community behind it, not a change in browser support status. The article reports that version 0.12 brings new CPU-specific optimizations (AVX-512, Arm NEON, etc.) and faster encoding/decoding—technical improvements that keep the format viable for developers, photographers, and archival use even without universal web-browser backing.