Free Online AVIF to WEBP Converter
Trade AVIF for WebP when you need wider browser support and still want it small.
AVIF files · up to 50 MB each · 100 MB with a free account
| File name | Size | Convert to |
|---|
Checking files and selected output formats.
AVIF to WebP: between two next-gen formats
Both AVIF (AV1 codec) and WebP (VP8/VP8L codec) are modern formats designed to replace JPG on the web. AVIF achieves slightly better compression but has slower encode/decode speeds and less browser support than WebP. The conversion decodes the AV1 bitstream and re-encodes with VP8. Since both are lossy, one additional generation of compression occurs, quality loss is minimal at high quality settings but the file may be 10-20% larger than the AVIF source.
Convert AVIF to WebP when you need broader browser compatibility (WebP: 97%+ vs AVIF: 92%+) or when your CMS, CDN, or image pipeline doesn't support AVIF yet. WebP is a safe middle ground between JPG compatibility and modern compression.
AVIF vs WebP: Side-by-side
Technical comparison of the two formats, useful for deciding which to use, or for confirming what changes during conversion.
| Property | AVIF | WebP |
|---|---|---|
| Full name | AV1 Image File Format | WebP (Google) |
| Year introduced | 2019 | 2010 |
| Developer / standard body | Alliance for Open Media | |
| MIME type | image/avif | image/webp |
| File extension | .avif | .webp |
| Compression | Lossy or lossless (AV1) | Lossy or lossless (VP8/VP8L) |
| Color / data depth | 8/10/12-bit | 24-bit + 8-bit alpha |
| Max dimensions / size | 65,536 × 65,536 px | 16,383 × 16,383 px |
| Transparency | Yes | Yes |
| Animation | Yes | Yes |
| Standard / specification | AOMedia AV1 | RFC 9649 (lossless), RFC 6386 (VP8) |
| Best for | Next-gen web images, 50% smaller than JPG, 20% smaller than WebP | Modern web, 25–35% smaller than JPG/PNG at equivalent quality |
Use AVIF when
- You need the absolute smallest file size for a critical hero image
- You want HDR delivery on supported browsers
- You control the environment and can require a modern browser
- You're using a CDN that transparently converts and serves the right format
Use WebP when
- You want a safe modern format that just works
- Encoding speed matters (large batches, CI pipelines)
- You need the widest possible browser reach
- Your CDN doesn't yet serve AVIF automatically
For most sites in 2026, WebP is still the pragmatic default, better encoding speed, universal modern support, still huge savings over JPG. AVIF is worth it for hero images and above-the-fold assets where every kilobyte matters. Modern CDNs (Cloudflare, Fastly) will negotiate the right format per-request, so serving both is often free.