Convert JPG to PNG
Your files stay on this device. Nothing is uploaded, nothing is stored on a server.
Drop your files here
or pick them from your device
How it works
- Drop your .jpg or .jpeg files onto the bench, or pick them from your device.
- Press Convert. The decoding and re-encoding happen on this page, not on a server.
- Download the PNGs one at a time, or all of them as a .zip.
It helps to be clear about what this conversion does and does not do. JPG throws away detail when it saves — that is how it gets small. Those losses are baked into the pixels the moment the file was written. Converting to PNG copies those exact pixels into a format that never discards anything, so the blocky edges around text, the mottling in a clear sky and the faint halos beside sharp lines all come along unchanged. Nothing is repaired.
What you gain is everything that happens next. PNG is lossless, so you can open it, edit it, save it, open it again and save it fifty more times without the picture getting any worse. A JPG degrades a little on every one of those saves. That makes PNG the right choice when an image is going into a round of edits, when it is going to be pasted into a document and cropped by someone else, or when you are keeping it as a working master.
There is also software that simply insists on PNG — some icon and asset pipelines, a few older design tools, certain upload forms. If a form rejects your JPG, this is the fastest fix.
Expect the file to grow, often by a lot. PNG compresses by finding repeated patterns, and photographs barely repeat: neighbouring pixels are all slightly different. A 2 MB JPG photo can easily become a 10 MB PNG. For flat graphics, screenshots and line art the growth is much smaller, and sometimes the PNG is even smaller than the JPG was.
Questions people ask
- Will converting to PNG make my photo look better?
- No. The detail JPG discarded is gone from the pixels themselves, and PNG stores those pixels exactly as they are. What you get is a copy that will not degrade any further, which is a different and more modest benefit.
- Why is the PNG so much bigger than the JPG?
- PNG never discards detail — it only looks for repeating patterns. Photographs have almost none, so there is little for it to compress. Flat-colour images like screenshots, diagrams and logos compress far better and grow much less.
- Does this give my image a transparent background?
- No. PNG can store transparency, but a JPG has none to begin with, so every pixel comes across fully opaque. Removing a background is a separate editing job, not something a format conversion can do.
- Are my photos uploaded anywhere?
- No. The files are read by this page, decoded and re-encoded by your browser, and handed straight back to you. Nothing is sent to a server and nothing is kept after you close the tab.
- What happens to the EXIF data?
- It is not carried over. The image is decoded to raw pixels and written out fresh, so camera model, timestamp and GPS coordinates do not end up in the PNG. That is worth knowing in both directions — it is a privacy gain and a metadata loss.