JPG to PNG
Converting JPG to PNG doesn't recover detail lost to JPG's lossy compression — it locks in the current quality losslessly and adds an alpha channel you can then edit for transparency.
This is the usual first step before erasing a background or overlaying a logo, since most photo and design tools need an alpha channel to work with transparency at all.
As a rule of thumb: stick with JPG when you need it for photos, where small file size matters most, and convert to PNG when screenshots, logos, graphics with text is what you actually need instead. Converting also gains you transparency support, which JPG doesn't have.
JPG vs PNG
| JPG | PNG | |
|---|---|---|
| Compression | Lossy | Lossless |
| Transparency | No | Yes |
| Best for | Photos, where small file size matters most | Screenshots, logos, graphics with text |
Frequently asked
- Is my JPG file uploaded to a server?
- No — the conversion runs entirely in your browser using the Canvas API. Your image never leaves your device.
- What's the maximum file size?
- There's no hard limit, but very large images (over ~50 megapixels) may be slow to process since everything runs on your device rather than a server.
- Can I convert multiple files at once?
- Yes, the converter above accepts multiple files and lets you download them all at once as a zip.