Convert JPG to PNG in your browser
Drop a JPG and Tinier converts it to PNG locally on your device. PNG is lossless, so you get a clean copy with no further quality loss — useful for editing, archiving, or a format that certain tools require. Nothing uploads; disconnect your internet after the page loads and it still works. Up to 50 MB per file, 1 to 20 at a time.
Why convert JPG to PNG?
Convert JPG to PNG when you need a lossless container — for editing without accumulating JPG compression artifacts each time you save, for archiving, or because a specific tool or workflow requires PNG. PNG stores every pixel exactly, so the copy will not degrade further as you work with it.
Converting to PNG won't improve JPG quality
This is the honest catch: a JPG is already lossy, and converting it to PNG cannot restore detail the JPG threw away. You get a lossless container around the image as it currently is — not a higher-quality image. Expect the PNG to be larger than the JPG, since PNG stores everything exactly. Convert for editability and format, not to "upgrade" the picture.
Why convert in your browser instead of a server?
Tinier decodes JPG and re-encodes PNG locally with WebAssembly, so the JPG is never uploaded. It is faster than a server tool on files under 10 MB because there is no round-trip, and it is private by construction. No account, no rate limit, no size paywall.
Frequently asked questions about JPG to PNG
Is my JPG uploaded anywhere?
No. The conversion runs entirely in your browser with WebAssembly. Your JPG never leaves your device — you can turn off your internet after the page loads and it still works.
Will the PNG look better than the JPG?
No. A JPG is already lossy, and converting to PNG cannot recover detail it lost. You get a lossless copy of the image as it is now — good for editing and archiving, but not a quality upgrade.
Why is the PNG larger than the JPG?
PNG is lossless and stores every pixel exactly, while JPG discards detail to shrink the file. So a JPG-to-PNG conversion almost always produces a larger file. That is expected.
Can I convert many JPGs at once?
Yes. Drop up to 20 JPGs and download them individually or as a ZIP. Each is processed on your device.
Related conversions
- PNG to JPG — the reverse — turn a PNG into a smaller JPG.
- JPG to WebP — shrink a JPG into a smaller WebP for the web.
- Compress PNG — optimize the resulting PNG losslessly with OxiPNG.