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JPEG to PNG

Convert JPEG photos into lossless PNG images, locally.

Conversion runs entirely in your browser using the Canvas API — nothing is uploaded. PNG output is lossless so the file is bigger but preserves every pixel.

Open the JPEG to PNG converter Private uploads Files never leave your device Free — no signup

How your files are handled

  • No uploads

    Your files never leave your device.

  • In-browser processing

    Every conversion runs locally in your browser.

  • Nothing stored

    Files aren't uploaded, so there's nothing to keep.

  • Privacy by default

    We never share or index your files.

How JPEG to PNG works

  1. 1

    Upload JPEGs

    Drop one or more JPEG files.

  2. 2

    Browser converts them

    We re-encode each image to PNG locally — no server roundtrip.

  3. 3

    Download your PNGs

    Grab the PNG files individually or as a batch.

Frequently asked questions

Is the conversion private?
Yes — everything runs locally in your browser.
What's the file size limit?
Every tool is free with a 25 MB per-file limit — no accounts and no paid tiers.
Do I need to install anything?
No. ConvertThoseFiles runs entirely in your browser — no plugins, no desktop app, no signup required.

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Ready to convert?

Launch the live JPEG to PNG converter and have your file ready in seconds.

Start JPEG to PNG