JPG to PNG

How to jpg to png

1. Add your JPEGs. One or many.
2. Convert. Each image is decoded and re-encoded losslessly here.
3. Download. Individually or as a zip.

About jpg to png

The honest framing first, because a lot of pages about this conversion are misleading: converting a JPEG to PNG does not improve it. JPEG compression permanently discards detail, and nothing downstream can bring that back. The PNG you get is a faithful, lossless copy of an already-damaged image, stored at a considerably larger file size.

What it does prevent is *further* damage, and that is a real benefit. Every time a JPEG is opened, edited, and saved again, it is recompressed and loses a little more. Do that five or six times — crop, adjust, save, reopen, annotate, save — and the degradation becomes visible as blockiness in flat areas and mush around edges. Converting to PNG first stops the chain, because every subsequent save is lossless.

So the correct use is as a working format. Convert to PNG, do your editing, and export back to JPEG once at the end if that is what the destination needs. This is standard practice in any image workflow and it is the main legitimate reason to make this conversion. The other common reason is a tool or platform that specifically requires PNG uploads, which is simply a compatibility issue.

Be ready for the file size. A photograph that is two megabytes as JPEG will often be twenty to thirty megabytes as PNG, because photographs are exactly the content lossy compression handles well and lossless compression does not. That is fine for a working file on your own machine and a problem for anything you intend to email. If you need a smaller lossless-ish intermediate, WebP in lossless mode is meaningfully more compact.

JPG to PNG FAQ