Is my JPG uploaded anywhere?

No. The conversion runs in your browser using WebAssembly and canvas APIs, so the image data never leaves your device. There is no upload endpoint in this application at all — you can watch the network tab while you convert.

Will converting to PNG improve the image quality?

No. It prevents further loss, but it cannot recover detail that JPG compression already discarded. The PNG will look exactly like the JPG did.

Why is my PNG so much bigger than the JPG?

PNG stores every pixel exactly, while JPG throws away detail your eye is unlikely to notice. For photographs, a lossless copy is simply much larger. If size matters more than losslessness, try WebP instead.

Does the PNG get a transparent background?

No. JPG has no transparency to carry across, so the PNG has the same fully opaque background. You would need an image editor to cut a subject out.

Is there a limit on how many I can convert?

No limit, no account and no watermark. Convert as many as you like, one at a time.

Convert JPG to PNG

Turn a JPG into a PNG without uploading it. The conversion runs on your own device and the download starts immediately.

Free
No signup
No watermark
Files stay on your device

Drop an image hereor browseJPEG • PNG • WebP • AVIF where supported

Processed locally

Your image never leaves your computer.

How to convert jpg to png

1
Choose your JPG
Drag the JPG onto the drop area, or browse for it.
2
PNG is already selected
The output format is set to PNG. You can resize at the same time if you want to.
3
Convert and download
Press Convert image and save the PNG.

What converting to PNG does and does not do

PNG is lossless, so from this point on the image will not degrade further no matter how many times you save it. That makes PNG a good working format while you are editing.

It does not undo the compression already baked into the JPG. Any detail the camera or the original export threw away is gone — converting to PNG preserves what is left rather than restoring what was lost.

Expect the file to get considerably larger, often several times the size of the JPG. That is the price of lossless storage of photographic content.

When this conversion is worth it

You are about to edit the image repeatedly and do not want generation loss.
You need to add transparency, which JPG cannot store.
A tool, printer or upload form only accepts PNG.
The image is a screenshot, diagram or contains text — PNG will look sharper and may even be smaller.

Frequently asked questions

Is my JPG uploaded anywhere?: No. The conversion runs in your browser using WebAssembly and canvas APIs, so the image data never leaves your device. There is no upload endpoint in this application at all — you can watch the network tab while you convert.
Will converting to PNG improve the image quality?: No. It prevents further loss, but it cannot recover detail that JPG compression already discarded. The PNG will look exactly like the JPG did.
Why is my PNG so much bigger than the JPG?: PNG stores every pixel exactly, while JPG throws away detail your eye is unlikely to notice. For photographs, a lossless copy is simply much larger. If size matters more than losslessness, try WebP instead.
Does the PNG get a transparent background?: No. JPG has no transparency to carry across, so the PNG has the same fully opaque background. You would need an image editor to cut a subject out.
Is there a limit on how many I can convert?: No limit, no account and no watermark. Convert as many as you like, one at a time.