GIF to AVIF Converter
Convert GIF to AVIF free — no upload, no signup
To convert GIF to AVIF, drop your GIF images into the box below, click Convert, then Download. Fylo does the work inside your browser, so nothing is uploaded and there's no signup or watermark. It shrinks still GIF graphics dramatically with modern compression.
Drop images here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
Higher keeps more detail; lower makes smaller files.
Advanced
Leave empty to keep the original size.
How to convert GIF to AVIF
Add your GIF files
Drag and drop GIF files into the box, tap to choose them, or paste with Ctrl+V. You can add many at once.
Check the quality
Leave AVIF quality at the default 60 or adjust the slider — higher keeps more detail, lower makes smaller files.
Convert and download
Click Convert, then download each AVIF or get them all in one ZIP.
Why convert GIF to AVIF?
If you have old GIF images on a website, AVIF is the most bandwidth-efficient replacement. It supports transparency and wide colour, so the image can be improved and edited later.
Does converting GIF to AVIF affect quality or size?
The first frame is encoded as AVIF. GIF art often has hard edges and flat colour, so use quality 70 or higher to avoid soft edges. AVIF encoding takes a moment longer than other formats.
What's the difference between GIF and AVIF?
GIF is a 1987 format limited to 256 colours per frame with on/off transparency. It's still everywhere thanks to simple animation support, but it's inefficient for photos.
AVIF is a modern format based on the AV1 video codec. It often produces files about half the size of JPG with fewer artefacts, and supports transparency and HDR.
Learn more: GIF format guide · AVIF format guide
| Property | GIF | AVIF |
|---|---|---|
| Compression | Lossless (LZW), 256-colour palette | Lossy or lossless (AV1) |
| Transparency | 1-bit (on/off) | Yes — full alpha |
| Animation | Yes | Yes |
| Colour depth | 8-bit palette (256 colours) | 8, 10 or 12-bit, HDR |
| Typical size, 12 MP photo | Not suited to photos | ≈ 0.8–1.5 MB |
| Support | Universal | Chrome 85+, Firefox 93+, Safari 16+, Edge 121+ |
| Best for | Simple animations, small flat graphics | Fast websites, hero images, photo galleries |
| Introduced | 1987 | 2019 |
Frequently asked questions
Does AVIF support animation like GIF?
Yes, AVIF supports image sequences, but Fylo currently converts the first frame only.
Is AVIF good for graphics with text?
At higher quality settings, yes. At low quality, fine text and sharp lines can blur — lossless WebP or PNG may suit pure text graphics better.
Are my GIF files uploaded to a server?
No. Fylo converts GIF to AVIF entirely inside your browser using a background Web Worker, so your files never leave your device. That's also why it's fast — there's no upload or download wait.
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