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XL ConverterImageMagick
Free

Free and open source under the GPLv3.

 Free

Free and open source under the ImageMagick licence, an Apache 2.0 style licence.

Windows, Linux Windows, macOS, Linux, Command line
  • Supports JPEG XL, AVIF and JPEGLI encoding
  • Lossless, reversible JPEG to JPEG XL transcoding
  • Over 200 formats, with conversion, resizing, compositing and effects from one command
  • APIs for most programming languages as well as the command line
  • macOS build is a deprecated beta
  • Focused on conversion rather than editing
  • The project advises creating and validating a security policy before use, especially with untrusted files
  • Its format handling has been a repeated source of security vulnerabilities
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-only License: ImageMagick
No account needed No account needed
Works offline Works offline

Checked October 1, 2026

Checked September 21, 2026

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