Compress AVIF images.
Smaller AVIF files in your browser — nothing is uploaded.
Drop AVIF files here
or browse your files
Paste with ⌘V · or drop files anywhere on the page
Files never leave your device. Everything runs in your browser, nothing touches a server — tools you've used even work offline.
Compress AVIF images right in your browser — re-encoded on your own device, never uploaded. AVIF is already a tight format, but plenty of AVIFs are heavier than they need to be: design-tool exports at quality 90+, cautious converter defaults, screenshots. Pick a quality or type a target size and squeeze the excess out.
How it works
- Drop files anywhere on the page, click to browse, or paste with ⌘V.
- Pick a quality or preset — or set an exact target size and let the tool find it.
- Compress, compare before/after, and download — individually or as a ZIP.
Why an AVIF can still shrink
File size in AVIF is a dial, not a property — and most encoders ship with the dial set timidly high. Re-encoding at quality 60–70 often halves a “quality 90” file with no visible change; the before/after compare tells you exactly when to stop. Target-size mode instead searches out the best quality under a hard cap like 200 KB. When a file must open in older software, AVIF to JPG is one click away, and the image compressor handles mixed batches.
What re-encoding changes
The output is a clean still AVIF: EXIF and GPS metadata are stripped (a privacy plus for web-bound images) and transparency is preserved exactly. Lossy generations do stack, so recompress from the best source you have, not from an already-crunched copy. Opening AVIF at all needs a current browser — Chrome, Edge, Firefox, or Safari from 16.1.
Frequently asked questions
How much can an AVIF shrink?
It depends how it was made: quality-90 exports routinely drop 40–60% at quality 65 with no visible difference. Files that were already encoded aggressively have little left to give.
Is recompressing lossy?
Yes — each lossy re-encode costs a little fidelity, invisible once but cumulative. Compress from the original when you can, and judge with the built-in compare slider.
Is EXIF metadata kept?
No — the output is written clean: EXIF, GPS and camera details are stripped. For images headed to the web that is usually the safer default.
Is it private?
Yes. The pixels are decoded and re-encoded right in your browser — images are never uploaded, and the server does nothing but deliver this page. Close the tab and no trace of your photos remains. Want proof? Run one file through, switch your connection off, and run another — it still works.