Turn PNGs into smaller JPGs with a background colour of your choice.
Or choose files, or paste a screenshot. They are converted on your device and never uploaded.
Converting on your device…
Your images never leave your device.
Converting a PNG to JPG is almost always about size. PNG stores every pixel exactly, which is the right choice for a logo and the wrong one for a photograph — a photo saved as PNG is routinely five to ten times larger than the same picture as JPG, with no visible benefit.
The one thing you lose is transparency. JPG has no alpha channel, so anything see-through has to become a colour; this tool lets you pick which, and defaults to white. If the transparency matters, you want PNG or WebP instead.
Everything happens in this browser tab, so a screenshot containing something private is not sent anywhere to be converted.
Screenshots save as PNG by default, and a full-screen capture can easily exceed 5MB. As a JPG the same image is usually under 500KB.
Passport photo tools, job applications and older content systems frequently accept JPG and nothing else, regardless of what the image contains.
Some editors and phone screenshots produce PNG for photographic content. Converting reclaims most of the file size immediately.
If a page is loading slowly because of photographic PNGs, converting them is a bigger and safer win than any amount of compression tuning.
Drop them here, paste a screenshot straight from the clipboard, or choose files. Several at once is fine.
Only relevant if the PNG has transparent areas. Whatever you pick is painted behind them, because JPG cannot store transparency. White suits most cases.
90% keeps photographs looking identical. Drop toward 75% if the file still needs to be smaller — screenshots with text hold up better at higher settings.
One file downloads directly; a batch comes back as a zip.
Slightly, because JPG is lossy. At 90% the difference is invisible on a photograph. On flat colour, sharp edges or text — a logo, a diagram, a screenshot of code — JPG produces visible fuzzing around the edges, and PNG or WebP is the better choice.
They are filled with the background colour you choose. There is no way around this: the JPG format has no channel to store transparency in. Convert to WebP instead if you need to keep it.
For a photograph, typically 80–95% smaller. For a simple graphic or a screenshot of mostly flat colour, sometimes not smaller at all — PNG is genuinely efficient at that kind of image, and the tool will tell you what you got.
You can, but it will not restore what was lost. Once JPG has discarded detail it is gone, and converting back only wraps the degraded image in a larger file. Keep the original PNG if you might need it.
No server limit, because there is no server. The conversion runs on your own device, so the practical ceiling is your browser's available memory.