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Photo & Image/AVIF Converter

AVIF Converter

Convert AVIF images to PNG, JPG, or WebP using the browser-native decoder — no upload, no server. First frame of animated AVIF.

100% LOCALNative decoderPNG / JPG / WebPQuality sliderSide-by-side preview
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Drop an AVIF image here, or click to browse
Decoded by your browser's native AV1 decoder — nothing uploads

Your browser may not decode AVIF — Chrome, Edge, Firefox 93+, or Safari 16+ recommended

Data Source & Legal Disclaimer
Effective: 2026Last updated: TodayUpdate: Manual review
Sources: WebCodecs ImageDecoder

AVIF decoding uses the browser-native ImageDecoder API; encoding uses canvas. Your file is never uploaded. Animated AVIF converts using its first frame.

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Why AVIF needs converting — and why decode support is the whole game

AVIF (AV1 Image File Format) compresses photographs at roughly half the size of JPEG with 10-bit color and HDR support — but the software around you has not caught up: most desktop apps, many CMS pipelines, older Office builds, and a long tail of photo tools still refuse .avif files. Converting to PNG (lossless, universal), JPEG (smallest universal lossy), or WebP (modern web default) is a decode-then-encode job, and the decode side is where tools fail — AV1 decoding in native code requires shipping a large codec library. Browsers have already solved this: Chrome 85+, Edge, Firefox 93+, and Safari 16.1+ all decode AVIF natively, and the WebCodecs ImageDecoder API exposes it with frame-accurate control. This tool uses that native decoder (with an <img> fallback), so there is no codec download, no WASM bundle, and the conversion of a 4K image takes milliseconds. Animated AVIF files convert using their first frame — a fair trade for a still-image format.

AVIF bytes → native ImageDecoder → canvas → PNG / JPEG / WebP
.avif fileAV1-compressed10-bit capableNative decoderImageDecoder APIbuilt into the browserimg fallback for SafariCanvasfull-resolution pixelsreleased after encodeYour pickPNG · JPG · WebPquality sliderfor lossy formatsanimated AVIF converts using its first frame

The browser's built-in AV1 decoder does the heavy lifting — no codec download needed.

The hero image the CMS rejected — Tomo's conversion

Tomo's designer ships the new hero image as AVIF to save bandwidth, but the CMS upload validator only accepts PNG, JPG, and WebP.

  1. Convert:He drops the 3.1 MB AVIF and picks WebP q92 — the browser-native decoder renders it in milliseconds, no upload, no queue
  2. Compare:The WebP lands at 4.8 MB for the 3840×2160 image; PNG would have been 11 MB. The preview panel confirms zero visible difference from the AVIF original
  3. Archive the original:He keeps the AVIF as the CDN master — it still halves bandwidth — and uploads the WebP copy wherever the CMS demands it
  4. Standardize:The team bookmarks the tool for every future AVIF hand-off; the whole loop costs seconds instead of an ffmpeg install