Convert AVIF to JPEG XL

A practical, local workflow for converting AVIF to JPEG XL with optimo.

Last updated: 2026-03-18

To convert AVIF to JPEG XL, run npx optimo image.avif --format jxl. JPEG XL can be a high-fidelity master in some workflows. Optimo handles format conversion and optimization in a single step.

Command

Convert a file by targeting the output format:

npx optimo image.avif --format jxl

Tip: add --dry-run to preview changes.

Why convert?

  • JPEG XL can be a high-fidelity master in some workflows.
  • Useful for experimenting with next-gen compression workflows.

Format notes

AVIF
High-compression modern image format that can beat WebP on size at similar quality.
Optimize AVIFCompress AVIFResize AVIFAVIF guide
JPEG XL
Next-gen image format designed for high quality and efficient compression.
Optimize JPEG XLCompress JPEG XLResize JPEG XLJPEG XL guide

More from AVIF

AVIF → PNGAVIF → JPEGAVIF → WebPAVIF → HEICAVIF → GIF

More to JPEG XL

PNG → JPEG XLJPEG → JPEG XLWebP → JPEG XLHEIC → JPEG XLGIF → JPEG XL

Frequently asked questions

How do I convert AVIF to JPEG XL?
Run "npx optimo image.avif --format jxl" in your terminal. Optimo handles the format conversion and applies optimization in a single step.
Why convert AVIF to JPEG XL?
JPEG XL can be a high-fidelity master in some workflows. Useful for experimenting with next-gen compression workflows.
Does converting AVIF to JPEG XL lose quality?
Optimo uses sensible defaults that balance file size and quality. For lossless conversion (where possible), omit the --lossy flag. Add --dry-run to preview the result before committing.