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QuickImageTool

Convert JFIF to PNGOnline Free

Change JFIF images to PNG in seconds, one or many at once, at full resolution and without uploading anything.

  • Files stay on your device
  • No sign-up
  • Free, no watermark

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About this tool

JFIF to PNG Converter

Convert JFIF to PNG right in your browser. JFIF is a JPEG image stored with JPEG File Interchange Format information, sometimes saved with a .jfif extension that upload forms reject, while PNG is a lossless format that keeps transparency, with larger files. Use PNG when an editor or form asks for a lossless image format. It preserves the decoded JFIF pixels without another round of JPEG compression.

Add one picture or a whole batch. Each one is converted at its original size, and you can download them one by one or all together as a ZIP. PNG does not restore detail already lost in the JPEG source and does not remove the background. The PNG may be considerably larger than the JFIF.

Files are converted in your browser, not uploaded. Add up to 50 images per batch. Very large images are scaled down to a maximum side of 16000 pixels to stay within browser canvas limits.

  • Batch conversion

    Convert many images at once and download them together as a ZIP.

  • Full resolution

    Width and height stay exactly the same as the original.

  • No quality loss

    PNG keeps every pixel of the converted image.

  • Private

    Converted on your device. Nothing is uploaded.

Step by step

How to convert JFIF to PNG

  1. 1

    Add your JFIF files

    Choose files from your phone or computer, drag them in, or paste an image.

  2. 2

    PNG is already selected

    There's nothing to set: conversion starts right away.

  3. 3

    Download

    Save each PNG, or download them all at once as a ZIP.

Compare the formats

JFIF vs PNG: what changes

PropertyJFIFPNG
CompressionJPEG compression: already lossyLossless: every pixel kept, larger files
TransparencyNoYes, with soft edges
AnimationNoNo
Colours16.7 million16.7 million
Accepted byJPEG-capable browsers and editors; .jfif extensions may be rejected by formsEverywhere
Best forJPEG image interchangeScreenshots, logos and graphics with text

FAQ

JFIF to PNG FAQ

Can't find your answer? Contact us.

Choose or drop your .jfif files. PNG is selected by default and conversion starts automatically. Download each result or use Download all as ZIP for the batch.

JFIF stands for JPEG File Interchange Format. It is a way of storing JPEG image data. A .jfif file is already in the JPEG family, but some apps and upload forms only recognise .jpg filenames.

PNG preserves the decoded pixels without adding JPEG compression loss, but cannot recover detail already lost in the JFIF. The PNG will often be larger and will not gain a transparent background.

For a valid JPEG-family JFIF, changing the extension to .jpg may be enough for an app that only checks filenames. Renaming does not re-encode the image. This tool instead creates a newly encoded file; renaming to .png never converts JPEG data to PNG.

Yes. Add up to 50 files in one batch and download them individually or together in a ZIP. Failed or damaged images show an error instead of a download.

No. Images are decoded and converted on your device in your browser. There is no sign-up or added watermark.

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