New Makerfern for Chrome: right-click any picture on the web to make a cut file, coloring page or stencil from it. Add to Chrome, free

JPG to PNG converter: lossless from here on

Drop a JPG and save it as a PNG, free. From this point nothing more is lost, and the dpi you choose is written into the file. It runs in your browser and nothing is uploaded.

Converted on this computer · nothing uploaded · no signup · no watermark

Faster with the free Chrome extension: right-click any picture on a website and send it straight to the image format converter. Add to Chrome · what it does

When a PNG is the right file

A JPG is lossy: every time it is saved again, a little more is thrown away. A PNG is lossless, so once your picture is a PNG you can open it, edit it and save it as often as you like without further damage. Many design programs, sticker and print-on-demand sites and cutting tools ask for a PNG for exactly that reason, and a PNG is the file that can carry transparency.

What a PNG will not do

  • It does not repair a JPG. The blocky patches and halos a JPG has are part of the picture now. A PNG keeps them faithfully.
  • It does not make the background transparent. A JPG has no transparent pixels, so the PNG made from it is solid too. To cut a subject out, use the background remover, which writes a PNG with a real see-through background.
  • It is much bigger. A photograph saved as PNG is commonly several times the size of the JPG. That is normal, and the size is shown before you download.
  • Rotation. A phone photo that carries a rotation note is turned the right way up first, so the PNG is not sideways.

The settings, for this conversion

  • Resolution. The dpi stamped into the PNG, 300 to start. The pixels do not change; print software uses the number to decide how many inches the picture covers.
  • Nothing else to choose. There is no quality slider for a PNG, because there is nothing to trade away.

How to do it

  1. Drop the JPG, or choose it.
  2. Choose PNG under Save as. It is already selected on this page.
  3. Set the dpi if you need a print size, then download.

Open the picture here, choose how to save it, and download. Everything happens in this page: the picture is read and rewritten by your browser, with no upload and no account. You can confirm that on the Network tab of your browser's developer tools.

One picture, or a whole folder

Converting one picture at a time is free, with no watermark and no limit. If you load several, you can pick any of them to preview and save on its own. Pro converts every loaded picture in one go and saves them as one ZIP (up to 30 at a time) with a short report of what was made.

Other conversions

The same tool opens with a different pair on each page, and any picture works on any page.

Questions

Will converting a JPG to PNG improve the quality?

No. It stops further loss, but it cannot bring back detail the JPG already dropped. If you need a sharper picture, start from the original or enlarge it with Upscale for print.

Why is the PNG so much bigger than my JPG?

The JPG stores the picture in a compressed, lossy way. A PNG stores every pixel exactly, and a photograph has millions of slightly different pixels. A flat graphic is the exception and can come out smaller.

Can I get a transparent background this way?

Not by converting alone, because the JPG has no transparency to keep. Cut the subject out first with the background remover, which saves a transparent PNG, or check an existing PNG with the transparent PNG checker.

What does the dpi setting do?

It writes the resolution into the PNG. The picture has the same number of pixels either way. Software that prints or places the file, such as a layout program, reads the number to size it: 3000 pixels at 300 dpi is 10 inches.

Can I convert many pictures at once?

You can load up to 30 pictures and look at each one, but saving them one by one is free and saving them all at once is part of Pro: one ZIP with every converted file and a short report. Your first batch on a device is free to try.

Is my picture uploaded?

No. The picture is opened and rewritten by your browser, in this page, and the page has no code that sends a file anywhere. The site counts that a tool was used and that a file of a certain type was saved, never the picture or its name.