JFIF to PNG Converter
Convert JFIF files to lossless PNG instantly. No upload, no signup — your files stay on your device.
Drop your JFIF file to convert
Accepts JFIF, JIF files. Up to 50MB.
100% browser-based. Your files never leave your device.
How to convert JFIF to PNG (10 seconds)
Drop your JFIF file
Drag and drop your .jfif file onto the converter. These often come from Windows screenshots or downloaded images.
Instant preview
See your image immediately. JFIF is decoded natively by your browser.
Convert
Click Convert to PNG. The conversion is instant — no server, no waiting.
Download PNG
Download your lossless PNG file. Compatible with every app and platform.
What even is a JFIF file and why does Windows keep making them
JFIF stands for JPEG File Interchange Format. It is technically the formal specification that all JPEG files follow. So here is the funny part: every JPG you have ever opened is actually a JFIF file on the inside. The image data is identical. The format is identical. The only thing that differs is the file extension.
So why do some files end in .jfif instead of .jpg? Mostly because of Microsoft Edge and Windows 10 and 11. When you right-click an image in Edge and save it, some versions of Windows save it with the .jfif extension instead of .jpg. There is no good reason for this. It causes problems because most apps recognize .jpg and .jpeg but not .jfif, even though the file inside is exactly the same thing.
The other place .jfif files show up is on older Windows systems and in some image editing software that is strict about using the official format name as the extension. Either way, the image data is fine. It is just the name causing drama.
Why convert to PNG instead of just renaming it?
You can often just rename the file from .jfif to .jpg and it will work. Most apps care about the extension, not the actual format, so renaming tricks them into opening it. This is a perfectly valid shortcut if your only goal is to open the file somewhere that refuses to recognize .jfif.
But converting to PNG is the cleaner option for a few reasons. PNG is universally compatible with every app, platform, and service you will encounter. It is lossless, so you are not adding any compression artifacts on top of whatever was already there. And you end up with a file that will not confuse anything, ever, for any reason.
The file will be larger as PNG than as JFIF or JPG. That is the tradeoff. If file size matters, rename to .jpg instead. If you want the cleanest possible output that works everywhere without any questions, convert to PNG. This tool does the conversion in your browser in about one second.