Images
Turn your JPG files into PNG in seconds. Everything happens in your browser: nothing is uploaded to any server.
Drag your files here
Or paste them with Ctrl+V. They never leave your device.
Turn a JPG into a PNG when you will edit it several times: PNG does not lose quality on each save.
It has no transparency and loses a little quality each time it is edited and saved again. As a PNG the image stays lossless and keeps its transparency.
JPG (or JPEG) compresses photos lossily: it drops details the eye barely notices so the file is much smaller.
Strengths: Every phone, computer, social network and app can open it, and it is ideal for photographs.
Limits: It has no transparency and loses a little quality each time it is edited and saved again.
PNG stores images losslessly: every pixel stays exactly the same, and it supports a transparent background.
Strengths: Great for screenshots, logos, charts and any image with text or sharp edges.
Limits: For photographs it is much larger than a JPG or a WebP.
No. The JPG to PNG conversion runs entirely in your browser, with code downloaded from this site and executed on your device. You can check it in the Network tab of the developer tools or by going offline after the page loads.
No: PNG stores the image losslessly, so it stays exactly as it was in the JPG (any loss already in the original cannot be recovered).
Your device’s memory sets the limit: on desktop, images up to about 100 megapixels; on mobile, up to 16.7. If an image is too large you are told before it starts.
Yes. Drop as many JPG files as you like: several are converted at the same time, depending on your processor cores, and when they finish you can download each PNG or all of them in a ZIP.