How to Convert JPG to PNG (and Why the File Gets Bigger)

You've got a JPG logo with a plain white background, and you need to drop it onto a colored banner without that white box showing up around it. Or a design tool is rejecting your JPG upload because it specifically wants PNG. Either way, the fix is a quick format conversion — JPG to PNG is searched tens of thousands of times a month for exactly these reasons.

The one thing this conversion actually changes

JPG and PNG store the same kind of pixel data, so converting between them, on its own, is lossless in the sense that no extra compression artifacts get introduced beyond what the source JPG already had — the conversion just re-encodes the existing pixels into PNG's format. What it doesn't do is remove a background or add transparency automatically. JPG has no transparency channel at all, so there's nothing to preserve — the white (or whatever color) background comes across as-is, just now sitting inside a PNG file. If you want an actually transparent background, that's a separate editing step (background removal), not something a format conversion alone does.

What PNG gives you that JPG doesn't

Once your image is in PNG format, it cansupport transparency and lossless edits going forward. That matters if you're about to open the file in an editor to cut out a background, add a transparent layer, or make further edits without JPG's compression re-degrading the image every time you save. Converting to PNG first is the standard first step before any of that — editors and background-removal tools expect a format that can actually hold transparency.

How to convert JPG to PNG

1. Open the JPG to PNG tool and add one or more JPG images.
2. Click "Convert & download." Conversion happens instantly on your device.
3. A single image downloads directly; multiple images come back together as a ZIP.

Why this runs in your browser, not a server

The browser's Canvas API can already decode JPG and encode PNG natively — the image is drawn onto a canvas, then re-exported in the new format, entirely in JavaScript. No upload, no wait, and your image never leaves your device.

Be ready for a bigger file

PNG uses lossless compression, which is generally less space-efficient for photographs than JPG's lossy compression — expect the PNG to come out 50-100% larger than the original JPG, sometimes more. That's expected, not a sign anything went wrong. Only convert to PNG when you actually need what PNG offers (transparency support, lossless further edits); if you're just archiving or emailing a photo, keeping it as JPG is usually the better call.

Common follow-up questions

How do I actually make the background transparent?Conversion alone doesn't do this — you'll need an image editor (Photoshop, GIMP, Photopea, or similar) to select and delete the background after converting to PNG. This tool's job is only the format change that makes that next step possible.

Should I convert every JPG I have to PNG? No — only convert the ones you actually need transparency or lossless editing for. For plain photos with no editing planned, JPG stays the better, smaller format.

Need to go back to JPG later? PNG to JPGreverses this conversion once you're done editing and want the smaller file size back.

Working with WebP instead? WebP to PNG handles the same kind of conversion starting from a WebP source.