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Convert WebP to AVIF

Free, instant and private — your WebP files are converted right in your browser and never uploaded to a server.

How to convert WebP to AVIF

  1. Step 01

    Add your WebP files

    Drop them into the box above or click to browse. You can add several files at once.

  2. Step 02

    Conversion starts instantly

    It runs in your browser using its built-in image engine — no upload, no queue, no waiting.

  3. Step 03

    Download your AVIF files

    Save each file individually or grab them all at once. Done.

Why convert WebP to AVIF?

Both WebP and AVIF are modern web formats, but AVIF usually compresses even better at the same quality. Converting WebP to AVIF squeezes out the last bit of file size for image-heavy sites — while keeping transparency intact.

WebP vs AVIF at a glance

WebP is Google's web format — roughly 30% smaller than JPG at the same quality, served by most large websites. AVIF is the newest mainstream image format — outstanding compression, but support outside browsers is still patchy.

PropertyWebPAVIF
Extension.webp.avif
Full nameWebP (Web Picture format)AV1 Image File Format
First released20102019
Developed byGoogleAlliance for Open Media
CompressionLossyLossy
TransparencyYesYes
AnimationYesYes
Best forweb images — smaller files at the same visual qualitynext-generation web images with maximum compression

WebP to AVIF — frequently asked questions

Is this WebP to AVIF converter really free?

Yes — completely free, with no sign-up, no watermarks and no daily limits.

Are my WebP files uploaded to a server?

No. The conversion happens entirely on your device using your browser's built-in image engine. Your WebP files never leave your computer or phone — which is also why the conversion is nearly instant.

Will I lose quality converting to AVIF?

AVIF uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.

Is it worth converting WebP to AVIF?

For maximum compression on a website, usually yes — AVIF tends to be smaller. If you need the broadest possible compatibility, WebP is still the safer choice.

Related conversions

Need the reverse? Convert AVIF to WebPExplore the AVIF converter