WebP is Google’s modern web image format. It makes files 25–35% smaller than JPG or PNG and supports transparency, but some older apps can’t open it. AVIF is the newest mainstream image format, based on the AV1 video codec. It gives the smallest files of all at the same quality, but support outside browsers is still patchy.
Converting to AVIF squeezes images as small as they go – useful for fast websites when you control where the image is shown. The conversion happens entirely in your browser, so your files are never uploaded and there’s no size limit beyond your device’s memory.
How to convert WebP to AVIF
- Add one or more WebP files.
- They’re converted to AVIF automatically.
- Download them individually or as a ZIP.
Questions
Is WebP to AVIF conversion free?
Yes, completely free with no limits, sign-up or watermark.
Are my files uploaded?
No. Conversion runs on your own device, so your files stay private.