JPG to PNG Converter
Convert JPG to PNG losslessly. PNG preserves every pixel and supports transparency, useful for further editing. Browser-based, nothing uploaded.
Drop a JPG image here or click to browse
Supports JPG, JPEG files
What is the JPG to PNG Converter?
A JPG to PNG converter re-encodes a JPEG image into a PNG file. Since PNG is lossless, no further compression artifacts get added during the save. The output preserves every pixel of the source and gains the alpha channel that PNG supports, even if the original JPG didn't have transparency to carry over.
How to use the JPG to PNG Converter
- 1
Drop in your JPG
Drag a .jpg or .jpeg file onto the upload area, or click to browse. The preview and file size show up right away.
- 2
Click Convert to PNG
The Canvas API decodes the JPEG and re-encodes it as PNG. Conversion is instant for typical photo sizes.
- 3
Download the PNG
Download PNG saves the result with the same filename and a .png extension. Expect the file to be larger than the JPG, since PNG is lossless.
- 4
Use it for editing or transparency work
PNG is the right format if you'll edit the file repeatedly (no compounding JPEG artifacts) or need to add a transparent background later.
Frequently Asked Questions
Why convert JPG to PNG?
Two main reasons. PNG is lossless, so re-saving in an editor doesn't compound compression artifacts the way repeated JPEG saves do. And PNG supports transparency, so you can erase the background later in another tool. Trade-off is bigger files.
Does conversion affect quality?
No quality is lost in the conversion itself. PNG stores every pixel of the decoded JPEG exactly as it sat in memory. That said, JPEG artifacts already baked into the source (blocking, ringing) come along for the ride; converting to PNG can't restore detail that JPEG threw away.
Is my image uploaded?
No. Decoding and re-encoding both happen in the Canvas API inside your tab. The original file never leaves your device.