Convert JPG to PNG — Free, No Signup
Convert JPG to PNG without uploading the file. Useful when a tool or a form insists on PNG, or when you are about to start editing and want every save from here on to be lossless.
How to do it
- Drop your JPG onto the upload box.
- Choose PNG as the output format.
- Convert. Note that PNG is lossless, so the file will usually be larger — this does not restore detail the JPG already lost.
- Download the PNG.
PNG will not undo JPEG damage
This is the single most common misunderstanding about the conversion. JPEG discarded detail when the file was first written, and that detail is gone. Wrapping the result in a lossless container preserves exactly what is there now — including every compression artefact, every bit of blocking in the sky, and every halo around a high-contrast edge. What PNG buys you is that no further degradation happens from here. It is a floor, not a repair. If the source looks soft or blocky, converting will not change that.
Expect the file to get much bigger
PNG is lossless, so it has to store every pixel exactly, and photographic content is the worst possible case for it. A 1 MB JPEG photo commonly becomes an 8 to 15 MB PNG. That is not a fault in the conversion — it is the honest cost of storing the same image without discarding anything. If the size is a problem and you still need transparency support or lossless behaviour, WebP is the better target: it does lossless too, and typically lands 25 to 35 percent below PNG on the same content.
Legitimate reasons to convert
Some upload forms and design tools accept only PNG, which is reason enough on its own. If you are about to composite the image into a layered design, working in PNG means intermediate saves do not stack generations of JPEG loss. Some print workflows specify PNG. And if you intend to add transparency — cutting out a background, for example — you need a format with an alpha channel before you start, since JPEG cannot hold one no matter what you do to it afterwards.
Converting does not add transparency
A JPEG has no transparent pixels, so the PNG that comes out is fully opaque. The alpha channel exists in the file but every pixel is set to solid. To actually get a transparent background you have to remove the background as a separate step; the conversion only makes that possible, it does not perform it. This trips people up regularly — they convert to PNG expecting the white behind a logo to become transparent and find it unchanged.
What the converter does
The image is decoded and re-encoded as PNG with no quality setting, because PNG is lossless and there is nothing to trade. Pixel dimensions are unchanged. Input is capped at 5 MB, which for a JPEG covers essentially any photo, though the resulting PNG may be many times that on disk. Everything runs in your browser and nothing is uploaded.
Frequently asked questions
Will converting to PNG improve the quality?
No. JPEG's discarded detail is gone permanently. PNG preserves exactly what is there now, artefacts included, and prevents further loss.
Why is my PNG so much larger than the JPG was?
PNG is lossless and photographic content is its worst case. A 1 MB JPEG commonly becomes an 8 to 15 MB PNG. That is expected.
Does converting to PNG make the background transparent?
No. Every pixel comes out opaque. Removing a background is a separate operation; the conversion only gives you a format that can hold transparency.
Is WebP a better choice than PNG here?
Often yes. WebP does lossless too and is typically 25 to 35 percent smaller than PNG on the same image.
Does the quality setting apply to PNG output?
No. PNG is lossless, so there is no quality trade-off to make and the setting is ignored.