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Convert WebP to AVIF

Free WebP to AVIF converter that runs in your browser. No upload, no signup, no watermark. Files never leave your device.

Conversion Successful
100% local. Your file is processed in this tab and never uploaded.

How to Convert WEBP to AVIF

  1. 1

    Drop your WEBP file

    Drag it into the converter above, or click to browse. Nothing is uploaded.

  2. 2

    Adjust settings (optional)

    Crop, resize, rotate, or set quality from the sliders icon.

  3. 3

    Convert and download

    AVIF is preselected. The file converts in this tab and downloads when done.

Why Convert WEBP to AVIF?

AVIF is the newer of the two modern web formats, and at the same visual quality it usually lands smaller than WebP, sometimes by a real margin on detailed photos. If you have already moved a site to WebP and want to shave a bit more off your image weight, AVIF is the next step down.

Browser support is now broad enough that shipping AVIF with a WebP or JPG fallback is a sensible default.

WEBP
AVIF
Compression
Lossy or lossless
Compression
Lossy or lossless
Transparency
Yes
Transparency
Yes
Max colors
16.7 million
Max colors
10/12-bit HDR
Animation
Yes
Animation
Yes
Browser support
97%+ (modern browsers)
Browser support
Modern browsers (2022+)
Typical use
Web images
Typical use
Web images

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Frequently Asked Questions

Is AVIF really smaller than WebP?
Often, yes, though it varies by image. On detailed photographs AVIF tends to win by a noticeable margin; on simple flat graphics the two land close together.
Do browsers support AVIF?
Chrome, Firefox, Safari (since 16), and Edge all decode AVIF, so coverage is broad. For older browsers, serve AVIF with a WebP or JPG fallback via the picture element.
Will I lose quality converting WebP to AVIF?
You are re-encoding one lossy format into another, so a little quality is spent in the round trip. At high quality settings it is hard to see. Keep your original source for future edits.
Why does AVIF encoding feel slower?
AVIF is more compute-heavy to encode than WebP. The browser runs a single-threaded encoder tuned for a reasonable speed-versus-size balance, so large images take a moment.
Is this conversion free, and is my file private?
Yes. The conversion runs in your browser tab, nothing is uploaded, and no account is needed. The only limit is size: 25 MB for this format. Bigger files route to the desktop app.

Re-encoding a large asset library to AVIF?

TeraConvert Desktop batch-converts your image assets to AVIF natively using macOS sips, with no browser memory limit.

Get TeraConvert for MacFree to download. This format unlocks with Pro.