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Rimagepngquant
Free

Free and open source, dual-licensed under Apache 2.0 and MIT.

 Free

Free and open source; the CLI is under GPL-3.0-or-later with some parts under HPND and…

Windows, Command line Windows, macOS, Linux, Command line
  • Modern codecs for small output files
  • Scriptable from the command line
  • Large file size reductions with preserved transparency
  • Adaptive dithering with less noise
  • No graphical interface
  • No tagged releases on GitHub
  • Command line only; graphical use needs a separate front end
  • Lossy, so not suited to images that must stay pixel-exact
Downloadable app Downloadable app
Open source Open source
License: Apache-2.0 OR MIT License: GPL-3.0-or-later
No account needed No account needed
Works offline Works offline

Checked October 2, 2026

Checked October 1, 2026

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