Drop your JPEG file(s) here
You can add more than one file
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AVIF is built on the compression used in AV1 video, and it is dramatically better at squeezing photographs than JPEG is. A JPEG to AVIF conversion routinely returns the same picture at half the weight or less. On a page carrying twenty photos, that is the difference between a slow gallery and a quick one.
This is the part people get wrong. Your JPEG has already discarded detail, permanently, and no format can put it back. AVIF simply describes the picture you currently have far more efficiently. Start from the biggest, cleanest JPEG you have rather than from something already saved small, and the result holds together much better.
Every current web browser handles them. Away from the browser it thins out fast. Plenty of photo viewers, office suites and older editors have never heard of the format and will show you nothing at all, so AVIF belongs on a web page rather than in an email attachment.
AVIF encoding is genuinely heavy work, far heavier than writing a JPEG. Files are handled one after another, so a large batch is something to start and walk away from. The first one carries the extra wait of getting the encoder ready, and the rest move along more steadily after that.
Half the weight or better
Detailed photographs typically land somewhere under half their original size.
Sizes reported per file
Each row shows what the AVIF weighs beside what the JPEG weighed.
Mixed targets in one queue
A single row can be pointed at another format without breaking up the batch.
Free for any number of photos
One image or an entire shoot costs nothing to put through.
JFIF to JPEG Converter
Rename .jfif images to the .jpeg extension that every program and upload form recognises.
JFIF to GIF Converter
Convert .jfif images into still GIF files for older systems that accept nothing else.
JFIF to AVIF Converter
Turn .jfif images into far smaller AVIF files ready for a web page.
WEBP to JPEG Converter
Turn WebP images into JPEG files that print shops, editors and older programs will accept.
Busy photographs with lots of texture save the most. A small flat graphic may barely move, and once in a while the AVIF comes out larger.
Mostly not yet. Send a JPEG copy if the picture is going into an email or a chat, and keep the AVIF for your site.
It compresses harder, so files come out smaller at the same quality. WebP is faster to encode and understood by more desktop software.
Some of it survives and some does not. If the shooting date and lens details matter, keep the original JPEG alongside it.