Image to AVIF
Convert PNG, JPEG and WebP images to AVIF in your browser, with adjustable quality and the before/after size of every file.
- Runs in your browser
- Free to use
About this tool
AVIF is the newest web image format, built on the AV1 video codec, and the most efficient one browsers support. The Image to AVIF converter re-encodes PNG, JPEG and WebP files with the browser's encoder at the quality you choose and shows the size saving per file, with individual downloads and a .zip. Encoding runs on your device, natively where the browser supports it and through a WebAssembly encoder elsewhere.
Related: Image to WebP, Image Compressor.
How to use it — quick steps
- 01
Add the images
Drop PNG, JPEG or WebP files on the dashed area or choose them from your device, up to 25 images per run.
- 02
Set the quality
Drag the slider; AVIF stays sharp at 70-80 and files are far smaller than JPEG at the same setting.
- 03
Press "Convert to AVIF"
Every row shows the old and new size with the saving; download the files one by one or as a .zip.
Key features of this tool
Best compression available
AVIF typically cuts 40-50% versus JPEG and 20-30% versus WebP at the same visual quality, with transparency support.
Works in every browser
Uses a WebAssembly AVIF encoder when the browser has no native one; encoding a large photo can take a few seconds.
Files never leave your device
Reading, compressing and rewriting happen in your browser with the File API; nothing is uploaded to IPVoid.
Frequently asked questions
Which browsers can encode AVIF?
All current ones: the converter uses the browser encoder when available and otherwise a small WebAssembly AVIF encoder (jSquash) loaded from the jsDelivr CDN on first use; your images still never leave the browser.
Where can I use AVIF files?
All current browsers display AVIF; use the <picture> element with a JPEG or WebP fallback for very old ones.
Is transparency kept?
Yes, PNG and WebP transparency is preserved.
Are my files or data uploaded?
No. The tool is plain JavaScript that runs in your browser; the files or data you provide here are never uploaded to our servers.