JXL to AVIF
Convert JPEG XL (.jxl) to AVIF for the smallest possible photo files. Free, private, in your browser.
Upload a JPEG XL image
JXL files only (max 20MB each) — converted privately in your browser
AVIF encoding runs a full AV1 encoder in your browser — it is slower than other formats, but produces the smallest files.
Processing image...
Original JXL
Converted AVIF
JXL to AVIF — Next-Gen Format to Next-Gen Format
Both formats are modern, but they live in different ecosystems: your camera or editor gave you JPEG XL, your website or app needs AVIF. This free converter re-encodes .jxl images to AVIF entirely in your browser — expect very small files at the quality you choose.
Smallest Files of Any Format
AVIF (AV1) compression is extremely efficient — converted photos are often smaller than the JXL original at similar visual quality.
Real Quality Control
A quality slider maps to AVIF constant-quality encoding, so you decide the exact size-versus-quality balance for every batch.
Honest About Speed
AVIF encoding is heavy work, so converting takes longer than JPG or WebP — your browser is running a real AV1 encoder locally, for free, with no server queue and no upload.
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