What is a GIF file?
GIF dates back to 1987 and survives today almost entirely because of animation. It is limited to a 256-color palette, which makes it a poor choice for photographs, and its compression is inefficient by modern standards — but every platform on earth plays a GIF.
In short, GIF is the classic format for simple animations. It is best for short looping animations, memes, and legacy compatibility. Its main limitations are only 256 colors, hard-edged (1-bit) transparency, and much larger files than modern formats.
Why convert GIF to AVIF?
AVIF is built on the AV1 video codec and delivers the strongest compression of any mainstream image format — files are often about half the size of an equivalent JPG and noticeably smaller than WebP at the same visual quality. It supports transparency, HDR, and wide color gamuts.
Converting from GIF to AVIF makes sense when you need performance-critical websites where every kilobyte counts, and modern image pipelines that can serve fallbacks. AVIF is supported by all current versions of Chrome, Firefox, Safari, and Edge.
Both formats support transparency, and this converter preserves the alpha channel — transparent areas in your GIF stay transparent in the AVIF.
AVIF uses lossy compression, so use the quality slider to balance file size against fidelity — 80–90% is visually indistinguishable from the original for most images.
How to convert GIF to AVIF
Drag and drop one or more GIF files into the box above (or click to browse). Adjust the quality slider if you want smaller files or higher fidelity, then press Convert. Each file is decoded and re-encoded as AVIF on your own device in a second or two, and you can download results individually or grab everything as a ZIP.
Unlike most online converters, FileLark never uploads your files to a server. The conversion runs entirely inside your browser using modern web technology, which means it works offline once the page has loaded, there are no file size queues or daily upload limits, and your images can never be stored, scanned, or leaked — they simply never leave your device.