JPG to PNG converter

Need to turn a JPG into a PNG? You probably want one of three things: transparency support, lossless quality for further editing, or compatibility with a system that only accepts PNG. This tool handles all three.

Drop your JPG (or JPEG — same format, different file extension) into the workspace above. We convert it to PNG in your browser using the Canvas API. Your files never touch our servers, and you can do this with hundreds of files at once.

How JPG to PNG conversion works

Three steps. No surprises.

When you actually need PNG instead of JPG

JPG is great for photos because it achieves small file sizes through lossy compression — meaning some image data is permanently discarded. PNG, by contrast, is lossless, which makes it the right choice in specific situations:

• You need transparency. JPG doesn't support transparent backgrounds. If you need a logo, icon, or graphic with a see-through background, you need PNG (or WebP/AVIF).
• You'll be editing the image further. Each time you save a JPG, more quality is lost. PNG preserves every pixel, so you can edit, save, and re-edit without degradation.
• The image has sharp edges or text. JPG compression smears the boundaries between colors, which is fine for photos but ugly for diagrams, screenshots, or text-heavy images. PNG keeps edges crisp.
• You're working with a system that requires PNG. Some platforms, design tools, and print workflows accept only PNG files.

If none of those apply, you might be better off keeping the JPG — PNG files of photos are typically 5–10× larger than their JPG equivalents with no visible quality improvement.

About transparent backgrounds

Here's something many users don't realize: converting a JPG to PNG does not give you a transparent background. The JPG never had transparency to begin with — it's stored as solid pixels. The PNG output will look identical to the JPG, just in a format that could support transparency.

If your goal is to make the background actually transparent (e.g. to put a product photo on a colored web page), you need a separate step: our remove background tool uses AI to detect the subject and erase everything else. You can run it before or after this conversion.

Quality and file size

This conversion is fully lossless — the resulting PNG is pixel-identical to the source JPG after decoding. You won't lose any quality.

However, the file will almost certainly be larger. JPG uses heavy compression optimized for photographic content, while PNG uses a lossless compression scheme that's only modestly effective on photos. Expect PNG files to be 2× to 10× larger than the JPG you started with, depending on the image.

If file size matters and you don't strictly need PNG, consider converting to WebP instead — you get modern quality and lossless support at a fraction of PNG's size.

Your files stay on your device

Most online JPG-to-PNG converters work by uploading your files to a server, converting them there, and sending you back a download link. That's a problem if your images contain anything sensitive — product designs, personal photos, work-in-progress creative, screenshots of internal tools.

pictoolkit takes a different approach. All the conversion code runs inside your browser using standard web APIs. Your files never travel over the network. There's no server to log them, no temporary storage to leak, and nothing for us (or anyone else) to see.

You can verify this yourself — open your browser's developer tools, switch to the Network tab, and convert a file. You won't see your image being transmitted anywhere. Read more about our approach in why client-side image processing matters.