JFIF (JPEG File Interchange Format) is the standard container most JPEGs use. The pixels are the same as a regular .jpg. Only the filename extension is different.

Will the result look identical?

Yes. The original JPEG pixels are decoded once and saved losslessly to PNG, so nothing degrades further.

JFIF to PNG

Converts JFIF (a JPEG variant) to PNG, and you can batch a whole folder at once.

What this does

JFIF is the standard container most JPEGs use, so the pixels are the same as a regular .jpg — only the extension differs. This decodes each JFIF in the browser and re-encodes it losslessly as PNG, and you can batch a whole folder at once.

How it works

1Drop your JFIF images.
2Each one gets decoded and re-encoded as PNG.
3Download each result, or grab them all as a zip.

Built on web standards

Built with standard browser APIs — no third-party libraries.

Frequently asked questions

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