Images · Free browser tool
Private JPG to PNG Converter
Convert a JPG or JPEG image into a lossless PNG copy in your browser, with decoded-output verification before download.
Runs on this device
No file upload
Free to use
Private workspace
Create a compatible PNG copy while keeping the original photo on this device.
Ready.
Selected file— · Reading…
Choose a file to begin
Create a compatible PNG copy while keeping the original photo on this device.
What this tool does
A focused job, with a visible boundary.
Create a compatible PNG copy while keeping the original photo on this device.
Decoded output verification
Exact dimensions and file-size comparison
Know the limits
Local does not mean unlimited.
Browser processing protects the file from an upload workflow, but the browser, device, output format, and selected settings still matter.
- PNG is lossless but may be substantially larger than the JPG source.
- JPEG compression already present in the source cannot be reversed.
- Browser re-encoding removes source metadata and normalizes orientation.
Four local steps
How to use jpg to png.
- 01
Choose one JPG or JPEG image.
- 02
Review the decoded image and dimensions.
- 03
Convert locally and wait for output verification.
- 04
Download the verified PNG copy.
Clear answers
JPG to PNG questions.
Does converting to PNG restore lost JPG detail?
No. PNG prevents further lossy compression, but it cannot restore detail already removed by JPEG compression.
Why can the PNG be larger?
PNG stores pixels losslessly and often needs more bytes than JPEG for photographs.
Is the image uploaded?
No. Decoding, conversion, and output verification happen in this browser.