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avif-format

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Use when reviewing image assets, markup, and CDN or build transforms related to Use AVIF format for modern browsers. Check encoded size, rendered size, loading strategy, and above-the-fold impact together.

skills/avif-format/SKILL.md

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# Use AVIF format for modern browsers

AVIF provides the best compression available—50% smaller than JPEG and 20% smaller than WebP—dramatically reducing bandwidth and improving load times.

## Quick Reference

- AVIF offers 50% better compression than JPEG
- Even better than WebP for photographic images
- Use picture element with WebP and JPEG fallbacks
- Browser support: Chrome, Firefox, Safari 16+, Edge

## Check

Check if the website supports AVIF format for even better compression than WebP.
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