AVIF to JPG converter

Free, unlimited, no account. The best compression available today, with HDR and transparency. Slower to encode. → The universal photo format. Lossy, no transparency, opens everywhere.

🔒 Nothing is uploaded. Check the Network tab of your browser: it stays empty.

Converting AVIF to JPG gives you the same content in a different container, with transparency filled in. It runs in your browser: nothing is uploaded, there is no queue and no size limit.

What changes when you convert AVIF to JPG

  • Both AVIF and JPG are lossy. Every re-encode discards a little more detail, so convert from the original when you can and keep the quality setting at 85 or above.
  • JPG has no transparency. Transparent areas are filled with a background colour (white by default, though you can pick another).
  • JPG is a still format. An animated AVIF keeps only its first frame. For animation, convert to WebP, AVIF or MP4 instead.
  • AVIF can carry HDR and 10-bit colour; JPG cannot. Highlights are tone-mapped to standard range.

When to convert, and when not to

Convert to JPG for photographs shared with anyone. The universal photo format. Lossy, no transparency, opens everywhere.

Keep AVIF for hero images where every kilobyte counts. The best compression available today, with HDR and transparency. Slower to encode.

How to convert AVIF to JPG

  1. Drop your AVIF file on the converter above, or click to choose. Several at once is fine.
  2. Check the options if you need them: quality, resize, width (px), height (px), with both set, scale (%), never enlarge beyond the original, background where transparency is lost.
  3. Click Convert, then Download. Nothing was sent anywhere, your browser did the work.

Questions

Is my AVIF file uploaded?

No. The conversion runs in your browser with WebAssembly. There is no upload endpoint on this site. You can open your browser's Network tab, or go offline after the page loads, and it still works.

Is there a file size limit?

No fixed one. The limit is your device's memory: a large images file on a phone is slower than on a laptop, but nothing is rejected for being big.

Is it free?

Yes, without an account, without a daily cap and without a watermark. Your device does the computing, so there is no server bill to pass on.

Will the quality drop?

JPG is lossy, so a little detail is traded for a smaller file. At quality 85 the difference is invisible on photos. For graphics with sharp edges, prefer a lossless format such as PNG.

Can I convert several files at once?

Yes. Drop them all; each is converted in turn and you can download them one by one or as a single ZIP.

Which engine does the conversion?

Image engine (jSquash: mozjpeg, oxipng, libwebp, libavif, libjxl), compiled to WebAssembly and running in your browser, on all your CPU cores when the browser allows it. First use downloads about 1.5 MB, cached afterwards.