AVIF vs WebP: Which Image Format Should You Use?

Byinstantwpadmin

The short answer

WebP is the safe default today: universal browser support, 25–35% smaller than JPG. AVIF compresses even further — often 20–30% smaller than WebP — but encoding is slower and support, while broad now, is slightly less universal. For most websites in 2026: serve AVIF with a WebP fallback, or just use WebP and move on.

File size comparison

Roughly, for the same photo at the same visual quality:

Format Relative size
JPG 100% (baseline)
WebP 65–75%
AVIF 45–60%

AVIF’s lead is biggest on detailed photos; on simple graphics the gap narrows.

Browser support

  • WebP: every modern browser, including Safari 14+.
  • AVIF: Chrome, Edge, Firefox, Opera, and Safari 16+. Effectively universal for current browsers, but visitors on older devices may miss out.

If your audience includes older phones or corporate desktops on old browsers, WebP is the safer single choice.

How to convert to each format

All free, no signup — upload, convert, download.

Which should you pick?

  • Blog, portfolio, business site: WebP. Simple, supported everywhere, big savings.
  • Photography-heavy site where every byte counts: AVIF primary + WebP fallback via the `` element.
  • Just getting started with optimization: convert to WebP first — it’s 80% of the win for 20% of the effort. Then compress the results.

Frequently asked questions

Is AVIF better quality than WebP? At the same file size, AVIF usually looks better — especially on photos with fine detail. At the same visual quality, AVIF files are smaller.

Why isn’t everyone using AVIF then? Slower encoding and slightly narrower support. WebP is the pragmatic choice for most sites.

Can I convert between AVIF and WebP? Yes — convert your source JPG/PNG to either format with the free tools above.

Are the converters free? Yes — no signup, no watermarks on the free plan.

CTA: Try both formats free — convert to WebP or convert to AVIF.

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