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pngquant

pngquant is a command-line utility and a library for lossy compression of PNG images.

Cost / License

  • Free
  • Open Source

Application type

Platforms

  • Mac
  • Windows
  • Linux
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pngquant information

  • Developed by

    PL flagKornel Lesinski and contributors

  • Licensing

    Open Source and Free product.

  • Written in

  • Alternatives

    83 alternatives listed

  • Badge

    Get an embeddable badge for pngquant

  • Supported Languages

    • English

AlternativeTo Categories

OS & Utilities, Photos & Graphics, File Management

GitHub repository

  •  5,758 Stars
  •  504 Forks
  •  59 Open Issues
  •   Updated  
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pngquant was added to AlternativeTo by Graziella on and this page was last updated .

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Install from the command line

  • brew install pngquant

Be careful what you paste into a terminal. Check what a command installs before running it.

What is pngquant?

pngquant is a command-line utility and a library for lossy compression of PNG images.

The conversion reduces file sizes significantly (often as much as 70%) and preserves full alpha transparency. Generated images are compatible with all modern web browsers, and have better fallback in IE6 than 24-bit PNGs. Features

  • High-quality palette generation using a combination of vector quantization algorithms.
  • Unique adaptive dithering algorithm that adds less noise to images than the standard Floyd-Steinberg.
  • Easy to integrate with shell scripts, GUIs and server-side software.
  • Fast mode for processing large numbers of images.