Convert PNG to JPG
Turn oversized PNG screenshots and photos into JPG files a fraction of the size, entirely in your browser.
Drop your PNG files here
or click to browse · paste with Ctrl+V · files never leave your device
Nothing queued yet. Add as many files as you like — everything runs on your own device.
Nothing is uploaded
Conversion runs in your browser. Your files never touch a server, so there is no copy of them to leak.
No sign-up, no watermark
No account, no email, no daily limit, and nothing stamped across your image.
Batch and folders
Drop a hundred files at once and download the results as a single ZIP.
Works offline
Once this page has loaded you can disconnect entirely and it still works.
Almost nobody converts PNG to JPG for compatibility — both formats open everywhere. People do it for size. PNG is lossless, which means it stores every pixel exactly and cannot exploit the fact that the eye barely notices small changes in a photograph. A screenshot or a phone photo saved as PNG is routinely five to ten times larger than the JPG that looks identical, which is why upload forms reject it and email attachments bounce.
This page converts in your browser, so there is no upload and no file limit, and you can adjust the quality before you commit. If you have a specific size to hit rather than a general wish for "smaller", the compress tool takes a target in kilobytes and works backwards to reach it.
The one decision to make is what happens to transparency, because JPG has none.
How to convert PNG to JPG
- Add your PNG files. Drag them onto the box above, click to browse, or paste an image straight from your clipboard. You can add as many at once as you like.
- Adjust the settings if you need to. The defaults suit most images. Raise the quality slider if the image contains text or flat colour. Pick a background colour if your image has transparent areas.
- Download the JPG file. Each file gets its own download button as soon as it finishes, and you can pull the whole batch down as a single ZIP.
What changes when you convert PNG to JPG
Every format conversion involves trade-offs, and vague tools hide them. Here is exactly what happens to your image in this particular conversion.
- JPG has no transparency channel, so any transparent areas are filled with a solid colour. White is used by default and you can pick a different colour before converting — this is the single most common surprise when going from PNG to JPG.
- PNG is lossless and JPG is lossy, so this conversion discards some detail permanently. At the default quality the difference is invisible on photographs, but flat colour, screenshots and text will show faint halos — keep the quality high for those.
What to do about transparency
JPG has no alpha channel whatsoever, so every transparent pixel has to become an opaque one. This converter fills them with a solid colour, white by default, and you can pick any other colour before converting.
The choice matters more than it sounds. A logo with a transparent background converted on white looks perfect on a white page and shows an obvious white box everywhere else. If the image will sit on a coloured background, set that colour here. If it needs to stay genuinely transparent — which is usually the honest answer for logos, icons and product cut-outs — JPG is the wrong destination. Convert to WebP instead for a small file that keeps transparency, or keep the PNG.
Photographs and screenshots have no transparency at all, so none of this applies to them and the default is simply correct.
When you should not convert PNG to JPG
PNG earns its size on flat colour and hard edges. Diagrams, charts, logos, UI screenshots and anything containing text compress badly as JPG, and the failure is visible: faint grey halos appear around every letter and every sharp boundary, and they get worse each time the file is saved again.
A screenshot of a photograph is fine as JPG. A screenshot of a spreadsheet is not — and it is often barely smaller anyway, because JPG is poor at exactly the kind of image PNG is good at. If your PNG is a screenshot of text and it is too large, resizing it or converting to WebP will serve you far better than JPG at any quality setting.
What happens to the file size
Measured, not estimated: two 1200 x 800 pixels references — a photograph and a flat-colour graphic — put through this converter.
| Reference image | As PNG | As JPG | Change |
|---|---|---|---|
| Photograph | 1.67 MB | 211 KB | -88% |
| Graphic with text | 40 KB | 21 KB | -47% |
Yours will differ: size depends more on what is in the picture than on the formats involved.
About PNG (Portable Network Graphics)
PNG is the lossless format of choice for screenshots, logos and any image that needs a transparent background.
Where you probably got it: Screenshots, logos, design exports, and graphics with transparency.
Strengths
- Completely lossless — pixels survive unlimited re-saves untouched
- Full 8-bit alpha transparency, including soft edges and drop shadows
- Perfect for text, screenshots, line art and flat colour
Limitations
- Much larger than JPG or WebP for photographs
- No animation (APNG exists but is patchily supported)
- No quality dial — you cannot trade detail for size
About JPEG (Joint Photographic Experts Group)
JPG is the lossy photographic format that has been the default for digital cameras and the web since 1992.
Support: Universal. If a program can open an image at all, it can open a JPG.
Strengths
- Opens in literally every image viewer, editor, printer and web form ever made
- Very small files for photographs, with a quality dial you control
- Hardware-accelerated decoding on every phone and camera
Limitations
- No transparency — transparent areas have to be flattened onto a solid colour
- Lossy: each re-save discards a little more detail permanently
- Blocky artefacts around sharp edges, text and flat colour
Is it safe to convert PNG online?
Here, yes — and you can check rather than trust. Open your browser’s developer tools, switch to the Network tab and convert a PNG file: no request carrying your image is made. Disconnect from the internet after this page has loaded and the converter still works, which would be impossible if a server were doing the conversion.
That is worth verifying wherever you convert, because most online converters do upload, and PNG files are so often screenshots of statements, invoices and internal dashboards, which people rarely think of as sensitive until they are on a stranger’s server. Once a file is on somebody else’s server you are relying on a privacy policy rather than on anything you can observe. We wrote up how to tell a safe converter from a risky one in more detail.
Frequently asked questions
How much smaller will the JPG be?
For a photograph, typically 80 to 90 percent smaller — a 6 MB PNG commonly lands around 600 KB with no visible difference. For a screenshot containing text the saving is far smaller, often only half, and the quality cost is much more visible. The size comparison table above shows measured results for both kinds of image.
Can I convert the JPG back to PNG later?
You can, but you will not get your original back. JPG discards detail permanently, and converting to PNG afterwards simply stores the already-damaged image losslessly — in a much bigger file. Keep the PNG as your master copy and treat the JPG as a distribution format.
How do I convert PNG to JPG?
Drag your PNG file onto the box above, or click it to browse. The conversion starts immediately in your browser and the JPG download appears within a second or two for most images. You can drop in a whole folder of files at once and download them together as a ZIP.
Are my PNG files uploaded to a server?
No. The conversion happens locally in your browser, so your files are never transmitted anywhere — the tool even works with the network disconnected once the page has loaded. That is also why there is no file size or file count limit: nothing costs us anything per conversion. The practical ceiling is your own device's memory, which on a phone means very large images may fail.
Will converting PNG to JPG reduce the quality?
Slightly, by design. JPG is a lossy format, so it approximates the image to save space. At the default quality setting the loss is invisible on photographs; on screenshots and text you may see faint halos, so raise the quality slider or choose PNG instead.
What is the difference between PNG and JPG?
PNG is the lossless format of choice for screenshots, logos and any image that needs a transparent background. JPG is the lossy photographic format that has been the default for digital cameras and the web since 1992. In practice the choice comes down to compatibility: universal across browsers, operating systems and design software. Meanwhile universal. If a program can open an image at all, it can open a JPG.