Convert PNG to AVIF
Private by design: the conversion runs on your device. Nothing is uploaded.
- Choose the target format
- Drop your file (or click to browse)
- Download the converted file
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Output format: avif
AVIF is where an illustration, a chart or a product shot ends up once page weight is the thing being optimised: it beats both PNG and WebP on size and, unlike JPG, it keeps a transparent background. The AV1 encoder here is the jSquash WebAssembly build, running inside this tab. Expect a few seconds of work per image and a file that is often a tenth of the PNG that went in.
Frequently asked questions
- Can AVIF store a transparent background?
- Yes, with a full alpha channel, so a logo on a clear background converts without a white box appearing behind it.
- Why is the encode taking several seconds?
- AV1 searches much harder for redundancy than PNG deflate ever does. That search is exactly what buys the smaller file, and it happens on this device rather than on a rented server.
- Is AVIF a sensible choice for a screenshot?
- It holds fine text better than JPG does, but PNG remains the honest answer for a pixel exact interface capture. Save AVIF for photographs, illustrations and anything already destined for a web page.