pngcheck (graphics/pngcheck) Updated: 2 years, 7 months ago Add to my watchlist

validate and inspect PNG, JNG and MNG files

pngcheck verifies the integrity of PNG, JNG and MNG files (by checking the internal 32-bit CRCs and decompressing the image data); it can optionally dump almost all of the chunk-level information in the image in human-readable form. For example, it can be used to print the basic statistics about an image (dimensions, bit depth, etc.); to list the color and transparency info in its palette (assuming it has one); or to extract the embedded text annotations. This is a command-line program with batch capabilities.

Version: 3.0.3 License: MIT and GPL-2 GitHub
Displaying statistics for 1,136 users who made submissions during: until

Statistics for selected duration

2025-Jan-10 to 2025-Feb-09


Total Installations 8
Requested Installations 8


macOS Versions

Loading Chart

Port Versions

Loading Chart



Xcode Versions

Loading Chart

CLT Versions

Loading Chart



Variants table

Variants Count


Monthly Statistics

Can remain cached for up to 24 hours