Drop your JFIF file(s) here
You can add more than one file
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Two things happen in a JFIF to GIF conversion. The awkward .jfif extension goes away, and the picture is rebuilt on a 256 colour palette. The second one is the change that matters, and it is worth understanding before you run a folder through.
A .jfif holds ordinary JPEG data with millions of possible colours. GIF picks 256 of them and approximates the rest. Flat artwork barely notices. A photograph does, and you will see it as visible steps across anything that used to fade smoothly, skies and skin worst of all.
Nine times out of ten someone wants a GIF because an old system only lists that format, not because GIF is better for the picture. If the choice is actually yours, PNG holds flat graphics losslessly and JPEG handles photographs properly, and both will look better than this will.
The palette reduction cannot be undone. Converting the GIF back later gives you a file with 256 colours in a format that could have held millions, so hang on to the original rather than replacing it.
Palette built per image
Colours are chosen from your own picture instead of a generic fixed set.
Awkward extensions read fine
Files other software refuses on the strength of their name open here normally.
One still frame out
The result is a single frame GIF, since the source holds one picture.
Free to run
Converting a single file or a whole folder costs nothing.
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.
WEBP to JFIF Converter
Write WebP images out as .jfif files for scanners, intake systems and older business software.
WEBP to AVIF Converter
Re-compress WebP images as AVIF, which is usually smaller again on detailed photographs.
The palette limit is doing that. Smooth gradients have to be approximated with far fewer colours, which turns them into visible bands.
For a photograph, usually larger. GIF compresses flat colour well and detailed images badly, so it is worth checking the two numbers on the row.
The conversion works, but only the 256 colours that survived come back. It will never look like the original again.
No. The pixel dimensions are unchanged, only the number of distinct colours in the picture is reduced.