What it does
The JPEG is decoded locally and its pixels are re-encoded as PNG, a lossless format. That re-wrapping stops any further compression from this step onward, but it can't bring back detail the original JPEG compression already discarded.
How to use
- Select a JPG or JPEG file.
- Select process.
- Download the resulting PNG.
Features
- PNG output is lossless from this point forward.
- No quality slider to configure — there's nothing to tune.
- Processing happens locally, with no upload involved.
Use cases
- Bringing a photo into design software that prefers PNG.
- Archiving a JPEG inside a lossless container for future edits.
- Preparing an asset for markup or layered editing.
Examples
- photo.jpg becomes photo.png, ready for editing.
- A scanned document saved as JPEG converts to PNG for annotation.
Common mistakes
- Converting JPG to PNG cannot restore detail already lost to the original JPEG compression.
- The resulting PNG file is often larger than the source JPG, since PNG doesn't use the same lossy compression.
FAQ
Does this improve JPEG quality?
No. It re-wraps the already-decoded pixels in a lossless container; it can't recover detail lost during the original JPEG compression.
Are files uploaded?
No. Everything stays on your device throughout the conversion.
Conclusion
A quick JPG-to-PNG conversion for whenever the next step in your workflow specifically calls for PNG.
