About AVIF to JPG
AVIF is the newest image format in wide use, and it is genuinely impressive — often **50% smaller than JPG** at the same visual quality, which is roughly twice the saving WebP achieves. Sites are adopting it quickly for exactly that reason.
The consequence is the same problem WebP created a few years earlier: you save an image from a web page, it arrives as a `.avif`, and almost nothing outside a browser will open it. Support in desktop software, print workflows and phone gallery apps lags years behind browser support.
Converting to JPG solves that, at the cost of a larger file.
Expect the file to grow, and that is fine. An AVIF that compresses a photograph to 200 KB may well become a 500 KB JPG. Nothing has gone wrong — you are trading AVIF's superior compression for the ability to open the file at all. If size is what matters and the destination is a browser, keep the AVIF.
Quality defaults to 92 here, slightly higher than our other converters. This is a re-encode of already-lossy data, and AVIF is efficient enough that its output is often visually near-perfect; compressing that hard on the second pass would waste the quality you started with. If you need a smaller result, drop it to 85 and compare.
Transparency is flattened onto white, because JPG has no alpha channel. AVIF supports transparency, so if your image has any — icons and logos especially — convert to PNG or WebP instead to keep it.
Browser decoding matters here. This tool relies on your browser being able to read AVIF. Every current browser can. If you are on something older and the file will not load, updating the browser is the fix.
Everything happens on your device. Nothing is uploaded, and batches of up to 30 files are handled one at a time.
Questions
Why will nothing open my AVIF file?
AVIF is supported in browsers but not yet in much desktop, print or gallery software. Converting to JPG makes it universally openable.
Why did the file get bigger?
AVIF compresses far better than JPG — often 50% better. Converting trades that efficiency for compatibility. That is the point of the conversion.
What happens to transparency?
It is flattened onto white. AVIF supports an alpha channel and JPG does not — convert to PNG or WebP if you need it kept.
Is my image uploaded?
No. Your browser decodes and re-encodes the image locally; nothing is transmitted.