Is my image uploaded to a server?

No. Conversion happens entirely inside your browser using Canvas and the gifenc library. Your image never leaves your device.

Which browsers support AVIF decoding?

Chrome 85+, Firefox 93+, and Safari 16.4+ all support AVIF natively. If your browser is older you will see an inline error message and should upgrade.

Why does the output GIF look less sharp than the AVIF?

GIF supports a maximum of 256 colors per frame (8-bit indexed color). Photos or images with many colors will look posterized or banded. For photos, use AVIF to JPG or AVIF to PNG conversion instead.

Can this produce an animated GIF from AVIF?

AVIF is a single-frame still image format by default. The output is therefore a static (non-animated) GIF. Animated AVIF to animated GIF conversion requires a native encoder like FFmpeg.

What is the maximum file size I can convert?

There is no server-side limit — everything runs in your browser. Very large images (above 15 MP) may be slow or fail depending on available device memory and the browser's GIF encoding budget.

Why is the GIF larger than the original AVIF?

AVIF uses highly efficient modern compression. GIF is an older format limited to 256 colors and run-length encoding, so the GIF output is almost always larger than the AVIF source, especially for photos.

AVIF to GIF Converter

Upload an AVIF image and download it as a static GIF — all processing happens entirely in your browser with no file upload.

Upload AVIF Image

Drag & drop an AVIF file here or click to browse

GIF Output

Upload an AVIF file to see the GIF preview here

Summary

AVIF is a next-generation image format offering superb compression, but some older platforms and tools still require GIF. This converter decodes your AVIF file in the browser, draws it onto an HTML Canvas, quantizes the colors to the 256-color GIF palette using the gifenc library, and produces a downloadable GIF — entirely client-side, with no data ever leaving your device.

How it works

Click the upload area or drag and drop an AVIF file onto it.
Your browser decodes the AVIF image natively (Chrome 85+, Firefox 93+, Safari 16.4+).
Both the input AVIF and its dimensions are shown as a preview.
Click "Convert to GIF" — Canvas reads the pixel data and gifenc encodes a 256-color GIF.
A GIF preview and before/after file size comparison are displayed.
Click "Download GIF" to save the result to your device.

Use cases

Share AVIF images on platforms that only accept GIF uploads.
Convert AVIF screenshots or thumbnails into GIF for legacy software.
Create a static GIF banner from an AVIF source image.
Prepare AVIF design exports for systems that require GIF format.
Quick client-side format conversion without installing desktop software.
Test how an AVIF image looks after GIF color quantization.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu