Convert JPG to PNG without sending it anywhere

And first, the question you should ask yourself.

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JPG, PNG, WebP, GIF, BMP, SVG · no limit on size or number

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Let’s say it up front: it’s often pointless

It’s the most requested conversion and the least justified, so let’s be direct. Turning a JPG into a PNG doesn’t improve the image. The JPG has already lost information permanently; the PNG just faithfully keeps that degraded image, in a file three to ten times heavier.

If you were hoping to recover quality or sharpness, this conversion won’t do it, and no tool in the world will.

The three cases where it really makes sense

Software that only accepts PNG. Some editing, printing or layout tools refuse JPG. That’s the most frequent and most legitimate reason.

You’re going to edit the image several times. Each time a JPG is saved again, it degrades a little more. Converting to PNG before starting a series of edits stops the bleeding: later saves will lose nothing more.

You’re going to add transparency. Cutting out a background requires a format that supports it. You then need to switch to PNG before the cut-out, not after.

What to expect

The file will get bigger, sometimes by a lot. A 400 KB JPG can give a 3 MB PNG. That’s normal: PNG applies no lossy compression.

The JPG’s compression artifacts, the little squares around edges, will be kept as they are. They were already there; the PNG freezes them.

Frequently asked questions

Are my images sent anywhere? No. You can check for yourself in thirty seconds: here is how.

Will PNG make my image sharper? No, never. No conversion restores lost information.

Will my JPG become transparent? No. PNG can carry transparency, but it doesn’t invent it. You’ll need to cut out the image afterwards.

Can I convert several at once? Yes, with no limit on number.