Convert JPG to PNG
Convert JPG to PNG right in your browser — free, private, nothing is uploaded. Get a lossless copy of every pixel.
Convert JPG to PNG →Free · Private — runs in your browser, nothing is uploaded
JPEG is the default format for photographs — lossy compression tuned for natural images keeps files small, and support is universal. It has no alpha channel, so transparency is always flattened.
PNG is the standard lossless web image: screenshots, UI graphics, logos and anything with sharp edges or transparency come out pixel-perfect.
Converting JPG to PNG is about compatibility, not quality: PNG stores pixels losslessly and is accepted everywhere, so it's the format to reach for when an upload form or workflow strictly requires it. The JPG's compression artifacts, though, are already baked into the pixels.
JPG vs PNG
| JPG | PNG | |
|---|---|---|
| Compression | lossy — some detail traded for size | lossless — nothing discarded |
| Codec / container | lossy DCT-compressed JPEG | lossless DEFLATE-compressed bitmap |
| Typical file size | small — the quality knob trades size against artifacts | efficient for flat graphics, large for photos |
| Best for | photos and everyday web images | screenshots, graphics, logos and anything needing transparency |
| Strength | small files for photos; opens absolutely everywhere | lossless, with a full alpha channel |
| Watch out for | no transparency; visible artifacts at low quality settings | large for photographs — photos compress far better as JPEG or WebP |
| Compatibility | universal | universal |
| Transparency | no — transparent areas are flattened | yes — full alpha channel |
| Animation | no | no |
How the conversion works
- Choose your JPG image. The button above opens the converter with PNG already selected as the target format.
- There is no quality to tune: PNG is lossless, so the quality setting is ignored.
- Run the conversion and download the PNG image. Everything happens locally — ffmpeg compiled to WebAssembly runs in your browser tab, your image is never uploaded, and the page keeps working offline once it has loaded.
What to expect
No detail is restored. PNG stores pixels losslessly, but your JPG's compression artifacts are already baked into those pixels — expect a noticeably larger file with exactly the same visual quality.
FAQ
Will converting JPG to PNG make it sharper?
No. PNG stores the pixels losslessly, but the JPG compression artifacts are already baked into those pixels — you get a larger file with exactly the same visual quality. Convert when a workflow strictly requires PNG.
Why is the PNG bigger than my JPG?
JPG stores the image as heavily compressed lossy data; PNG re-stores the decoded pixels losslessly, which simply takes more bytes. Same look, bigger file — worth it only when PNG is required.
Is my JPG image uploaded when converting to PNG?
No. The conversion runs entirely in your browser with ffmpeg compiled to WebAssembly — your image never leaves your device, and the page keeps working offline once it has loaded.