Guide
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.
Does converting to PNG restore lost JPG detail?
No. PNG prevents further lossy compression, but it cannot restore detail already removed by JPEG compression.
Opens the free tool. Your selected files stay in this browser.
Clear answers
Create a compatible PNG copy while keeping the original photo on this device.
Convert a JPG or JPEG image into a lossless PNG copy in your browser, with decoded-output verification before download.
-
01
Does converting to PNG restore lost JPG detail?
No. PNG prevents further lossy compression, but it cannot restore detail already removed by JPEG compression.
Lossless PNG output
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02
Why can the PNG be larger?
PNG stores pixels losslessly and often needs more bytes than JPEG for photographs.
Decoded output verification
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03
Is the image uploaded?
No. Decoding, conversion, and output verification happen in this browser.
Exact dimensions and file-size comparison
A local check
Create a compatible PNG copy while keeping the original photo on this device.
Convert a JPG or JPEG image into a lossless PNG copy in your browser, with decoded-output verification before download.
- 01
Selected file
Choose one JPG or JPEG image.
Choose one JPG or JPEG image.
- 02
Review before sharing
Decoded output verification
Review the decoded image and dimensions.
- 03
Local verification
Convert locally and wait for output verification.
Convert locally and wait for output verification.
Download the verified PNG copy.
Four local steps
Why can the PNG be larger?
- 01
Lossless PNG output
Choose one JPG or JPEG image.
- 02
Decoded output verification
Review the decoded image and dimensions.
- 03
Exact dimensions and file-size comparison
Convert locally and wait for output verification.
- 04
Lossless PNG output
Download the verified PNG copy.
Clear answers
Is the image uploaded?
No. Decoding, conversion, and output verification happen in this browser.
- 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.