Convert WebP to AVIF
Upgrade your WebP images to AVIF for even better compression with no visible quality loss.
Converting WebP to AVIF moves you to a newer, better-compressed format while staying in the modern-web ecosystem. AVIF files are typically 20 to 30% smaller than WebP files at equivalent quality, which adds up quickly across an entire website or content library. Both formats are supported by every modern browser, so the upgrade is invisible to your audience.
Drop an image or click to upload
HEIC, AVIF, WebP, PNG, JPG supported · Max 50MB
About this conversion
AVIF vs WebP
WebP came out in 2010 and was a big improvement over JPG when browsers finally adopted it. AVIF, released in 2019, raises the bar again. AVIF's underlying AV1 codec is more sophisticated than WebP's VP8 codec, which translates to better compression — especially noticeable in detailed photographic content. For most use cases, AVIF is now the best web format available.
When the upgrade pays off
The bigger your image library, the more the WebP-to-AVIF upgrade matters. A blog with five hero images per month barely notices. A photography portfolio, an e-commerce catalog, or a publication with hundreds of images per month sees meaningful CDN bandwidth and page-load improvements when its images move from WebP to AVIF.
When to stay on WebP
WebP encoding is faster and slightly more universal than AVIF. If your build pipeline is performance-sensitive or if you are targeting a niche audience on older devices, WebP may still be the safer choice. For most modern sites, AVIF is now the default recommendation.
Browser-side conversion
ImageFixer decodes WebP and encodes AVIF locally in your browser using WebAssembly builds of libwebp and libavif. The conversion is fast, private, and free — no upload, no usage cap.
Frequently asked questions
Is this free to use?
Yes. Single-image conversion is free with no signup required. Pro unlocks batch processing and more.
Are my files private?
Completely. All processing happens in your browser — no file is ever sent to a server.
What formats are supported?
HEIC, HEIF, AVIF, WebP, PNG, and JPG are all supported as input and output formats.