Image compressor
100% private — no upload
AVIF is the most efficient mainstream image format — typically 30–50% smaller than JPEG and smaller than WebP at the same quality, with transparency and HDR support. Drop your JPG, PNG or WebP files below to convert them to AVIF, entirely in your browser. No upload, no account.
PNG, JPG, GIF, WebP, HEIC up to 50MB per file
Choose filesFor most photos AVIF is 30–50% smaller than JPEG at the same visual quality, and usually 10–20% smaller than WebP. The savings are biggest on detailed photographs; simple graphics see less difference.
AVIF is decoded (viewed) by all modern browsers. Encoding in the browser currently works in Chrome and Edge. On Safari and Firefox this tool can't produce AVIF yet, so use a Chromium browser to convert — or pick WebP, which encodes everywhere.
Yes. Unlike JPEG, AVIF keeps an alpha channel, so transparent PNGs convert to AVIF without a white background — while being far smaller than the original PNG.
AVIF gives the smallest files and is supported by all current browsers, so it's the best choice for new sites that can serve a WebP or JPEG fallback for older clients. If you need a single format that encodes everywhere, WebP is the safer pick.