JPG to PNG Converter
Convert any JPG or JPEG image to lossless PNG format. Get transparency support and perfect quality. Everything runs in your browser — no upload needed.
Drop your JPG files
…or paste with Ctrl+V, or click to browse. Conversion starts instantly — no button to press.
100% browser-based. Your files never leave your device — we couldn't see them if we tried.
How to convert JPG to PNG (10 seconds)
Drop your JPG
Drag and drop your JPG or JPEG file onto the converter. Up to 50MB.
Instant preview
See your image immediately. No upload to any server.
Convert
Click Convert to PNG. The conversion happens entirely in your browser using the Canvas API.
Download PNG
Download your lossless PNG file. Perfect for editing, transparency, or archiving.
JPG vs PNG — when to use which
JPG uses lossy compression. Every time you save a JPG, it throws away some data to make the file smaller. This is great for photos on websites where file size matters. But if you need to edit the image further, each save degrades quality a little more.
PNG uses lossless compression. Nothing is thrown away. PNG also supports transparency — you can have shapes with see-through backgrounds, which JPG cannot do. The tradeoff is larger file sizes. Use PNG when you need transparency, when you plan to edit the image more, or when pixel-perfect quality matters.
Other converters you might need
Converting to PNG freezes a JPEG, it does not repair it
PNG is lossless: it stores every pixel exactly as it is. When a JPEG becomes a PNG, the compression artifacts already in the JPEG are stored exactly as well. The conversion stops any further damage from future saves, but it cannot undo damage that already happened.
That is the honest way to think about this converter. It is the right move when you want to stop a photo getting worse, and the wrong move if you are hoping it will look better.
Measured: how much bigger the PNG gets
We measured this on twelve of the illustrations used on this site. Each one was saved as a JPEG at quality 90, a typical setting for phones and cameras, and each JPEG was then converted to PNG.
The PNG versions were more than four times larger for exactly the same picture. PNG compression works by finding exact repeats, and a decoded photograph has fine texture and noise everywhere, which leaves very little exact repetition to exploit.
When PNG is the right destination for a JPEG
- You will edit and save the image many times. In our tests a JPEG re-saved ten times lost measurable quality each round, while PNG round trips stayed identical.
- You plan to add transparency later. PNG supports a transparent background and JPEG does not.
- You are adding text, arrows or other sharp graphics on top, which JPEG would blur at the edges.
- An app or upload form only accepts PNG.
One thing converting does not do is make anything transparent. The background of your photo stays exactly as it is. To cut the background out, use remove background, which produces a transparent PNG directly.