A newer picture, in a file anything opens.
Convert AVIF and JPEG XL pictures to JPG or PNG in your browser, fifty at once, with see-through parts kept in PNG. Nothing is uploaded.
By Suraj Kumar4 min read
Websites send more and more pictures as .avif, and some cameras and apps now save JPEG XL. Browsers show them; an older photo editor, a print shop or an upload form may refuse them. The KeepSimp AVIF to JPG page turns them into JPG or PNG in your browser, so the pictures never leave your device.
What AVIF and JPEG XL are.
AVIF stores a picture with the AV1 video codec from the Alliance for Open Media. It is often much smaller than a JPG of the same picture, and every current browser shows it, which is why sites use it.
JPEG XL is a newer still format from the JPEG committee. Safari shows it; other browsers were still adding it when this was written. Many programs outside the browser open neither, and that is when a JPG or PNG is the safer file.
Convert in three steps.
Open AVIF to JPG and drop your pictures, up to fifty at a time, or paste one. Files are told apart by their contents, not their names, so a picture saved with the wrong ending is still read.
The page starts on JPG, the answer to What do you need? that opens everywhere. Beside it is Sharp edges, which saves PNG instead. Download each file, or all of them as one ZIP.
See-through parts and colour.
AVIF and JPEG XL can be see-through; JPG cannot. A clear background becomes white in a JPG, or black or a colour you choose under More options, and the result says when that happened. Choose Sharp edges for a PNG that keeps every clear pixel.
Colours are converted to sRGB, the colour space every app assumes, so the picture looks the same wherever it is opened. Location and camera details are left out of the new file.
Why the JPG is bigger.
AVIF packs a picture tightly, so the JPG made from it is usually larger, and a PNG larger still. The result shows the new size beside the old one.
If a form has a size limit, turn on Make big photos smaller? and choose a longest side, or take the JPG to the image compressor and set the size it must be under.
When to keep the AVIF.
On your own website, AVIF is worth keeping for the browsers that show it, with a JPG for the ones that do not. Under More options, Several formats at once saves both and writes the picture HTML that offers each browser the one it can show.
Converting cannot bring back detail a small AVIF already lost: the JPG holds the same picture, in a format more programs open.
Further reading
Topics: avif to jpg · avif to png · convert avif · open avif file · jxl to jpg · jpeg xl to jpg · avif converter · avif vs jpg
A little less theory. A little more doing.
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