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ConverseenGraphicsMagick
Free

Free and open source; donations accepted.

 Free

Free and open source.

Windows, macOS, Linux Windows, macOS, Linux, Command line
  • Converts and resizes whole batches of images at once
  • Supports over 100 image formats
  • Reads and writes over 92 image formats, including AVIF, HEIC and JXL
  • Multi-threaded processing with OpenMP
  • Not a full image editor, only batch operations
  • PDF conversion needs extra setup according to the help pages
  • Command-line and library only, with no graphical editor
  • Takes some learning for complex operations
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: MIT
No account needed No account needed
Works offline Works offline

Checked September 23, 2026

Checked October 1, 2026

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