Convert JPGs to lossless PNG when you need a non-compressed, editable format.
Everything runs locally with HTML5 Canvas. Your image is never sent to a server.
Instant, accurate output tuned to the exact spec — no guessing, no queues.
Free forever, no sign-up, and never a watermark on your finished file.
Four steps, a few seconds, zero uploads.
Drop your image or browse. iPhone HEIC works too.
The tool applies the exact spec — tweak if you like.
See the result and file size before you commit.
Save your optimised, ready-to-use image.
Jump to another size or format.
It cannot recover detail already lost by JPG compression, but it prevents any further loss and gives you an editable, lossless file.
Usually yes — PNG is lossless, so photo PNGs are bigger than the source JPG.
Yes, the conversion is done locally in your browser.
Browse the full toolkit — one focused tool per page.
Every tool here runs in your browser. Nothing is uploaded, stored or watermarked — ever.
Is this safe? See how