How do I convert JPEG XL to AVIF?

Run "npx optimo image.jxl --format avif" in your terminal. Optimo handles the format conversion and applies optimization in a single step.

Why convert JPEG XL to AVIF?

AVIF can be extremely small for photos. Useful for performance-focused delivery steps.

Does converting JPEG XL to AVIF 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.

Convert JPEG XL to AVIF

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

Last updated: 2026-03-18

To convert JPEG XL to AVIF, run npx optimo image.jxl --format avif. AVIF can be extremely small for photos. Optimo handles format conversion and optimization in a single step.

Command

Convert a file by targeting the output format:

npx optimo image.jxl --format avif

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

Why convert?

AVIF can be extremely small for photos.
Useful for performance-focused delivery steps.

Format notes

JPEG XL

Next-gen image format designed for high quality and efficient compression.

Optimize JPEG XL Compress JPEG XL Resize JPEG XL JPEG XL guide

AVIF

High-compression modern image format that can beat WebP on size at similar quality.

Optimize AVIF Compress AVIF Resize AVIF AVIF guide

More from JPEG XL

JPEG XL → PNG JPEG XL → JPEG JPEG XL → WebP JPEG XL → HEIC JPEG XL → GIF

More to AVIF

PNG → AVIF JPEG → AVIF WebP → AVIF HEIC → AVIF GIF → AVIF SVG → AVIF

Frequently asked questions

How do I convert JPEG XL to AVIF?: Run "npx optimo image.jxl --format avif" in your terminal. Optimo handles the format conversion and applies optimization in a single step.
Why convert JPEG XL to AVIF?: AVIF can be extremely small for photos. Useful for performance-focused delivery steps.
Does converting JPEG XL to AVIF 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.