ConvertWarp

JPG to PNG

Make a PNG from a JPEG.

About this tool

JPEG is efficient for photographs but it is lossy: each save can soften edges. PNG is lossless and is a better fit when you will edit the picture again, overlay it, or need a format that many design tools open without extra codecs.

Turning a JPEG into a PNG does not recover detail the JPEG already threw away. The PNG will usually be larger. What you gain is a file that will not add another generation of JPEG artifacts on the next edit.

The JPEG is decoded in the browser and written as a PNG. There is no quality slider because PNG is not a JPEG-style quality scale. Caps are 50 MB and 32 megapixels. Progressive JPEGs still decode as a single still image.

How to convert JPG to PNG

  1. Choose a JPEG photograph. Decoding stays in the tab.
  2. Convert. The page writes a PNG from the decoded pixels.
  3. Download the lossless PNG of those pixels.

50 MB / 32 MP safety cap. CMYK JPEGs and some unusual APP markers may fail in the browser decoder. One file at a time.

FAQ

Does turning a JPEG into PNG post the photo?
No. Decoding happens in this tab. We do not store a copy on a server.
Does a PNG wrapper make a camera JPEG lighter?
Usually not. Photographs compress better as JPEG. Use Compress image if you need fewer bytes, not this converter.
Does this add transparency?
No. A JPEG is fully opaque. The PNG will be opaque too unless you edit it later in another tool.
Can I convert HEIC here?
No. This page only accepts JPEG. Use HEIC to PNG or HEIC to JPG for iPhone photos.
Do I need an account?
No. There is no sign-in. Closing the tab discards the in-memory copy.

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