Convert GIF to AVIF
GIF's 256-colour palette and 1987-era compression make it the least efficient format still in common use; AVIF is the most efficient. The size difference on a still image is often an order of magnitude.
Best for: Still GIFs that need to be as small as modern encoding can make them.
What to know
- Only the first frame is converted — animation is not supported.
- GIF's hard-edged one-bit transparency becomes a full alpha channel, but existing jagged edges cannot be smoothed retroactively.
About GIF
A 1987 format kept alive by animation, capped at 256 colours per frame.
- 256 colours means visible banding and dithering on anything photographic.
- Its LZW compression is spectacularly inefficient by modern standards.
- Transparency is a single on/off bit, producing hard jagged edges.
- Animated GIFs are routinely ten times the size of the equivalent video or animated WebP.
- Support:
- Every browser ever shipped.
- Transparency:
- One bit — a pixel is either fully opaque or fully transparent.
About AVIF
Built on the AV1 video codec and standardised in 2019 — currently the strongest compression available in a widely supported still image format.
- The best quality-per-byte of any format here, typically by a wide margin.
- Handles gradients and flat colour without the banding JPEG produces.
- Wide colour gamut and HDR support built in.
- Full alpha, and it compresses that alpha well.
- Support:
- Chrome, Edge, Firefox, Opera and Safari 16+. Roughly 93% of users.
- Transparency:
- Full alpha, efficiently compressed.
Frequently asked questions
- Can I convert an animated GIF to AVIF?
- Not here — only the first frame is converted. Animated AVIF exists but encoding it is a video problem rather than a still image one.
Related conversions
Converting from something else? Convert any image to AVIF