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JFIF to JPG without losing quality

Turn JFIF files into JPG

The same picture, with a name every website accepts.

or drop them here · paste works too

FreeNo sign-upPhotos stay on your device

A lake at dawn between pine trees and blue mountainsJFIF
A lake at dawn between pine trees and blue mountainsJPG

Drop .jpeg, .jfif, .jpe or .jpg files

No re-encoding. The file inside is unchanged; only the name ends differently. Many files at once.

    Browsers sometimes save JPEG pictures with a .jfif ending, and upload portals often refuse it. Drop the .jfif files and get the identical bytes back as .jpg, with a SHA-256 checksum to prove it.

    What a JFIF file is

    JFIF is the JPEG File Interchange Format — the ordinary layout of a JPEG file. Some systems register .jfif as the extension for image/jpeg, so a picture saved from a browser can arrive named photo.jfif. The contents are a normal JPEG.

    A portal that accepts .jpg but rejects .jfif is checking the name, not the picture. This mode changes only the name: the bytes are not decoded or re-encoded, and the checksum of the output matches the original.

    If the .jfif is not a JPEG

    Rarely, a .jfif file holds a PNG or WebP. It is flagged rather than renamed, with an option to convert it to a real JPEG.

    Questions about JFIF to JPG

    What is a JFIF file?
    A JPEG picture with a .jfif extension. JFIF is the standard JPEG file layout; the extension is just a less common name for it.
    Does JFIF to JPG lose quality?
    No. Only the extension changes. The bytes are identical, and the page shows the matching SHA-256 checksums.
    Why does the portal reject my .jfif?
    It checks the file name against a list such as .jpg and .jpeg. After renaming, the same picture is accepted wherever JPEG is.
    How do I stop my computer saving .jfif?
    The extension comes from the operating system's file-type settings. Renaming here fixes the files you already have.
    Are my files uploaded?
    Nothing is uploaded: the picture is read, converted and checked in this browser tab.

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