JFIF to JPG Converter

Save .jfif images as .jpg without re-compressing them.

A .jfif file is a JPEG image with a different file extension. JFIF (JPEG File Interchange Format) is the standard layout of most JPEG files, and some versions of Windows and some browsers save downloaded images with .jfif instead of .jpg, which confuses apps and upload forms. This converter saves them as .jpg without re-compressing, so the image data stays identical and there's no quality loss. Files that turn out not to be JPEGs are converted properly instead. Files are converted in your browser and never uploaded, so photos and documents stay on your device.

Select one or many. Converted in your browser; nothing is uploaded.

Common use cases

  • Fix images that Windows or a browser saved as .jfif
  • Upload .jfif images to forms that only accept .jpg
  • Open .jfif files in apps that don't recognise the extension
  • Rename a batch of .jfif files at once

How to use

  1. Choose one or more .jfif files, or drag them onto the box.
  2. Each one is checked and saved as .jpg with the image data unchanged.
  3. Check each result's preview.
  4. Download each JPG, or all of them as a ZIP.

FAQ

Is JFIF the same as JPG?

Yes, in practice. A .jfif file is a JPEG image; only the extension differs. That's why renaming it to .jpg works, and why this converter doesn't need to re-compress it.

Why do my downloads save as .jfif?

On Windows, a registry setting links the image/jpeg type to the .jfif extension, so some browsers save JPEGs that way. Fixing that setting stops it; this converter fixes files you already have.

Can I just rename the file myself?

Yes: changing .jfif to .jpg in your file manager works for real JPEGs. This tool does the same for many files at once and checks each file really is a JPEG.

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