Question 1

What is a JFIF file?

Accepted Answer

JFIF (JPEG File Interchange Format) is a minimal header wrapper around JPEG image data. It is the same image compression as JPG but some cameras and browsers save with the .jfif extension. Converting to .jpg makes the file more widely compatible.

Question 2

Can I convert multiple JFIF files at once?

Accepted Answer

Yes. Drag and drop several .jfif files at once and each is converted to .jpg in your browser. A download link appears for every converted file.

Question 3

Are my images uploaded to a server?

Accepted Answer

No. All conversion happens entirely in your browser using the Canvas API. Your images never leave your computer.

Question 4

Does converting JFIF to JPG reduce quality?

Accepted Answer

Because JFIF already contains JPEG-compressed data, re-encoding to JPG uses the same compression. You can choose a quality from 60% to 100%; 90% is visually lossless for most photos.