A (.jfif) file is a JPEG File Interchange Format standard, which is fundamentally a variation of a JPG/JPEG image. If you are downloading images and finding them saved as .jfif instead of .jpg , it is likely due to system settings in Windows 10/11 or your web browser. Why Images Download as .jfif
If you want to stop this from happening, you can modify your Windows registry: JFIF to JPG Converter - CloudConvert Download images jfif
Windows Photos, macOS Preview, and web browsers (Chrome/Edge) can open JFIF files directly. How to Fix the "Save as
A .jfif file is essentially a renamed .jpg. It contains the exact same data and compression as a standard JPEG, but the extension looks different. How to Open JFIF Files Download images jfif
Open the JFIF file in Paint and use "Save as" to select JPEG. How to Fix the "Save as .jfif" Issue (Windows)