Convert JPG to PNG
PNG is lossless, so converting a JPG to PNG stops any further quality loss from re-saving. It will not recover detail the JPG already discarded, and the file will usually be larger.
Choose a JPG file
or drag and drop it here
Converted in your browser — no upload needed for most files.
Preparing...
We couldn’t complete this in your browser.
🔒 Your image has not been uploaded.
When to convert JPG to PNG
Editing without generation loss
Every time a JPG is re-saved it is re-compressed and loses a little more detail. Converting to PNG first means later saves are lossless.
Screenshots and graphics
Flat colour, text and sharp edges compress badly as JPG and show ringing artefacts. PNG keeps them crisp.
A format that supports transparency
JPG has no alpha channel. Converting to PNG lets you add transparency afterwards in an editor — it cannot create transparency on its own.
Where the conversion happens
This converter runs in your browser using its built-in image support. Your file is read from disk, converted, and offered back for download — in the normal case it never leaves your device, so there is nothing for us to store, and the conversion works the same whether the file is 50 KB or 50 MB.
Very large images can exceed what a browser tab can safely decode. If that happens, or if your browser cannot produce PNG files, CurePDF will say so and offer to process the image on our servers instead — but only after you explicitly agree. Nothing is uploaded before you choose that.
Frequently asked questions about JPG to PNG
Will converting a JPG to PNG improve the quality?
No, and it is worth being clear about why. JPEG throws data away when it saves, and that data is gone — no format can reconstruct it. What you gain is that PNG is lossless, so from this point on the image stops degrading each time it is saved.
Why is my PNG larger than the JPG it came from?
That is expected. PNG stores every pixel exactly, and photographs vary too much from pixel to pixel for lossless compression to do much with. A PNG several times the size of the JPG is normal and does not mean anything went wrong.
Does converting to PNG give my image a transparent background?
No. A JPEG has no transparency to carry over, so the PNG comes out fully opaque. What changes is that PNG can store transparency, so you can now erase areas in an image editor and have that survive being saved.
Do the pixel dimensions change?
No. The width and height stay exactly as they were — only the encoding changes.
Is camera information kept in the converted file?
No. Details such as camera model, capture date and GPS coordinates are not carried into the PNG.