JPG to PNG Converter
Convert JPG — or any other image format — to lossless PNG in bulk, entirely inside your browser.
Why convert JPG to PNG?
PNG uses lossless compression, so re-encoding a JPG as PNG preserves every pixel exactly as it decoded from the original, with no further compression artifacts. It's the right choice when a file needs to be edited further, layered with transparency, or used somewhere that requires a lossless format.
Converting to PNG doesn't undo JPG's original compression artifacts — it just stops adding new ones on every future save.
GuideHow to use it
Features & benefits
Why this runs entirely in your browser
The conversion uses the browser's own Canvas API to redraw and re-encode the image locally, so the original file never leaves the device — no upload, no server-side processing.
Common uses
Preparing a JPG photo for further editing without compounding compression artifacts, adding transparency to an image in an editor, or meeting a platform's requirement for PNG uploads.
Frequently asked questions
A few things people usually want to know before trusting the numbers.
No — any compression artifacts already present in the JPG stay in the image. PNG just stops adding new ones on future saves.
PNG's lossless compression typically produces larger files than JPG's lossy compression, especially for photos with lots of detail or gradients.
The output file supports transparency as a format, but since JPG has no alpha channel to begin with, the converted PNG will be fully opaque.
No hard limit is enforced, but very large images may take longer to process since everything runs in the browser tab.
No. All conversion happens locally in your browser. Nothing uploaded here is sent to a server, stored, or shared.