JPG to PNG — Free

Drop the JPG above and press Convert. There is no account, no batch limit and no watermark — the file is never uploaded, and conversion happens entirely in your browser.

Not by itself, and this is the most common misunderstanding about the conversion. A JPG has no alpha channel at all, so there is no transparency stored in the file for the PNG to inherit — a straight conversion gives you a PNG that looks identical to the JPG, background included. Transparency has to be created, by deciding which pixels should become see-through. That is what the "Make a colour transparent" option does here: it removes a colour you choose, usually the background.

Tick "Make a colour transparent" and choose White, or use the eyedropper to sample the exact shade from your image. Then raise the tolerance until the background disappears without eating into the subject. JPEG compression means a white background is never uniformly white — it is thousands of near-whites — so some tolerance is always required; around 10–20% suits most images.

It sets how far a pixel's colour can be from the one you picked and still be treated as background. Too low and you get a speckled halo of leftover pixels; too high and parts of the subject start disappearing too. The preview updates as you drag, and the tool tells you what percentage of the image was made transparent so you can spot a setting that has clearly gone too far in either direction.

Because the pixels along the subject's edge are anti-aliased — genuinely part subject and part background, blended together. Making them fully opaque keeps that blended background tint as a fringe. The "Remove colour fringe" option un-blends it mathematically, recovering the subject's own colour from each partly-transparent pixel. Combined with edge softness, that is what makes a cut-out look clean rather than pasted.

It works well on a reasonably uniform background — a product shot on white, a portrait on a studio backdrop, a logo on a solid colour, a green screen. It is colour-keying, not subject detection, so it cannot separate a person from a busy street scene, and it will remove parts of the subject that happen to match the background colour. For complex backgrounds you need an AI background remover rather than a colour key.

Almost certainly, often several times larger. PNG is lossless, so it stores every pixel exactly rather than approximating them the way JPEG does. That is the trade: better fidelity and transparency support, in exchange for file size. Photographs show the biggest increase; flat graphics and screenshots much less.

No. PNG preserves what is there without losing anything further, but it cannot recover detail that JPEG compression already discarded — that information is gone from the file. Converting is worth doing when you need transparency, or when you will edit and re-save the image repeatedly and want to stop compression loss compounding each time.

Yes. Add as many as you like and they all convert with the same settings, including the transparency settings if enabled. Download them individually or as a single ZIP.

No. Every image is decoded, processed and re-encoded entirely inside your browser. Nothing is transmitted. That makes it safe for anything you would not upload to an unknown server — product photos before launch, ID images, private pictures. Once the page has loaded it works offline.

No. The output is your image as a PNG, nothing added. There is no watermark, no badge, and no paid tier that removes one.