AVIF Compressor
Reduce AVIF file sizes by re-encoding at a lower quality setting — without changing dimensions. Upload multiple files, pick a quality level, and see exactly how much space you save per image. Everything runs in your browser; your files are never uploaded.
Upload AVIF Images
Drag and drop .avif files here, or click to browse
Select one or multiple files
How to Compress AVIF Images
- Upload — drag and drop or click to select one or more
.aviffiles. - Choose quality — 75% (Balanced) works well for most images. Go lower for maximum file reduction.
- Click Compress Images — the tool re-encodes each image at the selected quality.
- Download — save files individually or click Download All as ZIP.
How Much Can You Save?
AVIF compression varies by image content:
| Quality | Typical file reduction | Best for |
|---|---|---|
| 95% | 5–15% | Archiving, lossless-near |
| 85% | 15–30% | Print-ready web images |
| 75% | 30–50% | General web use |
| 60% | 50–65% | Blog, thumbnails |
| 40% | 65–80% | Previews, icons |
Results depend on the source image. An AVIF already encoded at 75% will show minimal savings when re-compressed at 75%.
Browser Requirements
AVIF compression requires encoding support. Decoding (displaying) AVIF works in Chrome 85+, Firefox 93+, and Safari 16+. Encoding — writing new AVIF files — requires Chrome 93+ or Firefox 93+. Safari currently supports displaying AVIF but does not support AVIF encoding via the Canvas API.
Frequently Asked Questions
Will this change the image dimensions?
No. The compressor re-encodes at the same width and height. Use the AVIF Resizer if you want to change dimensions.
Why is the output sometimes larger than the input?
If the original file was encoded at a lower quality (e.g. 60%), compressing at a higher quality (e.g. 85%) will increase the file size. Always match or go below the original quality level for size reduction.
Are my files uploaded to a server?
No. Compression is performed entirely by your browser using the Canvas API. Your images are never sent anywhere.
