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pngcrush — PNG compression utility. More information: <https://pmt.sourceforge.io/pngcrush/>.

Submitted by: @import:tldr-pages·Mar 2, 2026·

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How to use the pngcrush command: PNG compression utility. More information: <https://pmt.sourceforge.io/pngcrush/>.

pngcrush — PNG compression utility. More information: <https://pmt.sourceforge.io/pngcrush/>.

Compress a PNG file:

pngcrush {{in.png}} {{out.png}}

Compress all PNGs and output them to the specified directory:

pngcrush -d {{path/to/output}} *.png

Compress PNG file with all 114 available algorithms and pick the best result:

pngcrush -rem allb -brute -reduce {{in.png}} {{out.png}}

Compress a PNG file

pngcrush {{in.png}} {{out.png}}

Compress all PNGs and output them to the specified directory

pngcrush -d {{path/to/output}} *.png

Compress PNG file with all 114 available algorithms and pick the best result

pngcrush -rem allb -brute -reduce {{in.png}} {{out.png}}

tldr-pages: common/pngcrush

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