GIF → AVIF 100% local

Convert GIF to AVIF
online, without ever uploading it.

4.9/5 from 1,284 reviews

MediaBay is a online image converter that converts your files GIF (Graphics Interchange Format) to AVIF (nouvelle génération AV1) right in your browser. Processing uses your device's native and WebAssembly APIs — not a single pixel travels across the internet.

One rule. Just one.

Your files never leave your device. Verifiable in the DevTools.

Are you a webmaster? Embed this converter on your site for free.

N°02 The tool

The image converter GIF to AVIF, 100 % online.

Use our free online image converter to turn your GIF files into AVIF in seconds. Unlike other online converters, MediaBay performs the GIF to AVIF conversion right in your browser — without uploading your files to a remote server.

Whether you need to convert GIF to AVIF once in a while or process several images in a row, this online image converter runs locally thanks to the HTML5 Canvas and WebAssembly APIs. No hidden limits, no sign-up, no watermark on the final AVIF file.

N°03 The context

Why convert a GIF to AVIF.

The GIF (Graphics Interchange Format) format is widely used, but it isn't always suited to every use case: web sharing, editing, archiving, compatibility.

The AVIF (nouvelle génération AV1) format offers an alternative — often lighter, more modern, or more universal. With our GIF to AVIF converter, the switch takes just seconds, without uploading your files anywhere.

N°04 The comparison

MediaBay vs Other Converters.

Most online image converters upload your files to a server. MediaBay doesn't. Here's the difference, point by point.

Comparison between MediaBay and traditional online converters
MediaBay Other converters
Transfer MediaBay No upload — processed locally, in your RAM Other converters Your files uploaded to a cloud server
Speed MediaBay Instant — independent of your connection Other converters Slow — capped by your network upload speed
Privacy MediaBay Absolute — no file kept, no trace Other converters Files stored temporarily on third-party servers
Limits MediaBay No paywall — up to 100 MB per file, no watermark Other converters Aggressive limits (often 5 MB) or forced watermarks
N°05 Questions

Convert GIF to AVIF — frequently asked questions.

How do I convert a GIF file to AVIF?

Drag your GIF image into the drop zone, choose AVIF as the output format, then click Convert. The download starts automatically.

Is GIF to AVIF conversion free?

Yes, completely. MediaBay is free, with no sign-up and no reasonable usage limit.

Are my images uploaded to a server?

No. Conversion is 100% client-side: everything happens in your browser thanks to WebAssembly. Not a single pixel leaves your device.

Is AVIF quality preserved?

Yes. AVIF uses a high-quality encoder; you can adjust the quality slider manually.