Convert JPEG to AVIF

To convert JPEG to AVIF, run npx optimo photo.jpg --format avif. AVIF can deliver very small files for photo-heavy pages. Optimo handles format conversion and optimization in a single step.

Command

Convert a file by targeting the output format:

npx optimo photo.jpg --format avif

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

Why convert?

• AVIF can deliver very small files for photo-heavy pages.
• Best when you can tolerate slower encoding for better compression.

Format notes

JPEG

The classic photo format: widely supported, good quality-to-size for photographs.

• Optimize JPEG
• Compress JPEG
• Resize JPEG
• JPEG guide

AVIF

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

• Optimize AVIF
• Compress AVIF
• Resize AVIF
• AVIF guide

Not sure which to use?

If you're choosing a delivery format, here's a quick comparison.

• JPEG vs AVIF