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WebP / AVIF Converter
Modern images for Core Web Vitals.
WebP / AVIF Conversion
Convert JPG/PNG to modern formats for Core Web Vitals. 100% in the browser.
✓ Best compression, supported by all modern browsers
80% is the sweet spot for web
How this tool works
WebP (Google, 2010) and AVIF (Alliance for Open Media, 2019) are modern image formats replacing JPEG. AVIF compresses ~50% better than JPEG at equivalent quality; WebP ~30% better. Both are supported by all modern browsers (Chrome, Firefox, Safari 16+, Edge).
This converter processes your images in the browser (canvas + Blob API) — no file leaves your computer. Converting your image library to AVIF can reduce total site weight 40–60%, improving LCP (Largest Contentful Paint) and your Google ranking.
Frequently asked questions
- WebP or AVIF?
- AVIF if your hosting supports it and your audience has 2022+ browsers. WebP for full compatibility (Safari 14, IE11 no, but IE11 no longer matters).
- Do I lose quality?
- At quality 80, AVIF and WebP are visually indistinguishable from original JPEG. For web always quality 75–85.
- Does my CMS support them?
- WordPress yes since 2022. Shopify yes. Webflow yes. If you use Next.js, the
component serves WebP/AVIF automatically with fallback. - Do SEO crawlers see them?
- Yes. Google indexes WebP and AVIF images since 2020. Only the extension changes — alt text and context still work the same.