AVIF to GIF Converter
Convert AVIF to GIF in your browser. AVIF files usually come from image CDNs, modern web build pipelines and some recent phones; GIF is the better fit for short animations and reactions that must play everywhere. You get a GIF with an optimised palette of up to 256 colours per frame, dithered. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
AVIF expected · other image formats also work
How to use AVIF to GIF
- 1
Add your AVIF files: drop them here, choose them, or paste from the clipboard.
- 2
There is nothing to tune: the GIF is written losslessly. Resizing and rotating are under More options if you need them.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .gif files one at a time or together as a ZIP.
Why use Aback Images for avif to gif
Where the GIF goes next
GIF opens in every browser, operating system, chat app and editor.
GIF next to AVIF
The GIF keeps the decoded pixels without lossy compression, so expect it to be larger than the AVIF.
No new artefacts
AVIF is already lossy, since it stores lossy or lossless AV1 intra-frame coding; the GIF keeps the decoded pixels losslessly, so this step adds no compression damage of its own.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
AVIF vs GIF
What changes from AVIF to GIF
Encoding: the AVIF uses lossy or lossless AV1 intra-frame coding; GIF uses lossless LZW over a palette of at most 256 colours, and the download is a GIF with an optimised palette of up to 256 colours per frame, dithered.
Bit depth: 8, 10 or 12 bits per channel in the AVIF; GIF allows 8 bits per pixel, as indexes into a palette, and the GIF written here has 8 bits per pixel (palette). 10 and 12-bit AVIFs, including HDR ones, are decoded to 8 bits per channel.
Colour: YUV 4:4:4 or 4:2:0 with BT.709, Display P3 or BT.2020 primaries, HDR curves possible in the AVIF; GIF supports an indexed palette of up to 256 colours per frame, written here as an indexed palette of up to 256 colours.
Transparency: the AVIF stores it as an auxiliary AV1 image stored beside the colour image; the GIF keeps it as on or off per pixel, so soft edges become hard.
Animation: an AV1 image sequence under the 'avis' brand; the GIF keeps every frame and its timing, as image blocks with their own delay and disposal method, looped by the NETSCAPE2.0 extension.
Metadata: the AVIF can carry EXIF, XMP and ICC stored as HEIF items; GIF can carry comment and application extension blocks, but no EXIF, but nothing is copied across.
About AVIF
AVIF uses the AV1 video codec for still images. It is the most efficient widely supported format, often half the size of JPEG, with HDR, wide colour and transparency, but encoding is slow.
An AVIF is a HEIF file, the same ISO base media boxes as MP4, with the brand 'avif'. The picture is an AV1 key frame stored as an image item, and its size, colour and pixel layout are item properties.
AVIF files usually come from image CDNs, modern web build pipelines and some recent phones.
About GIF
GIF is the classic animated image format. It is limited to 256 colours per frame and 1-bit transparency, so photos look grainy and files are large, but it plays everywhere.
A GIF starts with 'GIF89a' (or the older 87a), a logical screen descriptor and an optional global colour table, then image blocks, each preceded by a graphic control extension that sets its delay and transparent colour.
When converting AVIF to GIF makes sense
GIF is the better choice for short animations and reactions that must play everywhere, while AVIF suits maximum compression on modern websites.
GIF strengths: Animation that works everywhere; Simple, universally supported; Good for small flat graphics. Drawbacks to weigh: Only 256 colours per frame; Hard-edged transparency only; Large files for photos or long clips.
Limitations
- Almost any other format needs more bytes than AVIF for the same picture, so expect the file to grow.
- HDR and wide-gamut AVIFs are mapped to standard sRGB on decode, so very bright highlights can look flatter than on an HDR screen.
- GIF transparency is on or off per pixel, so soft edges and shadows get a hard outline.
- GIF holds at most 256 colours per frame, so AVIF colour is reduced and gradients are dithered.
- GIF stores at most 256 colours per frame, so photographs show dithering or banding.
- GIF transparency is all or nothing per pixel, so soft shadows and anti-aliased edges get a hard fringe.
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Frequently asked questions
Does converting AVIF to GIF lose quality?
GIF is written losslessly, so the pixels are stored exactly as decoded. Artefacts already in the AVIF stay, but nothing new is lost. 10 and 12-bit AVIFs, including HDR ones, are decoded to 8 bits per channel.
Is the animation preserved?
Yes. Every frame and its timing are converted to GIF. Turn off Keep animation if you only want the first frame.
Which apps open GIF files?
Every browser, operating system, chat app and editor.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.