JFIF to JPG Converter

JFIF and JPG are the same thing. JFIF stands for JPEG File Interchange Format, the specification that says how JPEG image data is wrapped into a file, published as ITU-T T.871. A file named photo.jfif and a file named photo.jpg hold the same bytes in the same order. Nothing about the picture differs, and no conversion in the ordinary sense is needed, or even possible.

The extension arrives by accident. When you save an image from Chrome or Edge on Windows, the browser asks the system which extension belongs to image/jpeg, and on a great many machines the registry answers .jfif. From that moment the file is a nuisance rather than a problem: an upload form checks the extension and rejects it, a photo editor does not list it in the open dialog, and a colleague double-clicks it and gets offered the Microsoft Store.

So this page does the only honest thing available: it renames. The bytes of the file you drop are copied through untouched and handed back with a .jpg extension. A holiday.jfif comes back as holiday.jpg at exactly the same size, byte for byte the same file, opening to the same image with the same EXIF capture date, camera model and color profile still attached. Every other conversion on this site decodes the image and re-encodes it through a canvas, which costs a generation of JPEG quality and strips metadata on the way. This one does neither, because there is nothing to re-encode, and the note under each converted file says so.

Two caveats are worth knowing. The page tells JFIF from JPG by the file name, because the name is the only place the two differ, so a file already named .jpg is not a JFIF file here: it is turned away with a link, since it needs no renaming. And the bytes decide what a file really is: if that .jfif turns out to be a PNG or a WebP under the wrong name, the converter sees the real format and re-encodes it to genuine JPEG instead of handing you a mislabelled file. The Quality slider is on screen because JPG output normally uses it, but on a straight JFIF pass it has nothing to do. Everything runs client-side, nothing is uploaded, and it is free, no signup, with a daily limit on conversions.

• The rename happens client-side. The file is read inside the browser tab and handed back with a .jpg name, and its contents are never uploaded.
• The daily limit check sends the tool name and a device identifier, plus your account token if you are signed in. After a batch, only the file count, total bytes and output format are recorded, never file names or image data.
• EXIF data survives, including the capture date, camera model and any GPS coordinates. If the photo is going somewhere public, run it through the EXIF remover first.
• A file whose bytes are not JPEG is re-encoded rather than renamed, and that copy loses its metadata. The note under each row tells you which path each file took.
• Converted files stay in the tab's memory until you remove them, press Clear All or close the page. No copy is kept on a server.