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AviSynth+ is a fork of the well-known frameserver featuring new functionality and optimizations not available in mainline. In the hope of modernizing AviSynth to meet present day needs and expectations, the project encourages everybody to help reach our goals: add long-sought features, energize the community, and improve developer and user friendliness. AviSynth+ is fully compatible with plugins and scripts written for AviSynth.

Want to help out AviSynth? Check out our ideas and pick one to implement!

Changes compared to AviSynth

  • 64-bit version available
  • Faster script startup and substantially faster core filters
  • Support for multiple ("shadow") plugin directories
  • Autoloading of C-plugins
  • Script language extensions, with support for multiline conditionals and loops.
  • Improved still image support and TimeStretch
Developer features
  • Easy and fast compilation, with current compilers
  • 2x increased compilation speed
  • Improved debugging experience
  • Leaner and more logical project structure
  • Large parts of the code refactored

Get in touch with us, give your feedback or let us merge your contributions. You can find us on our Doom9 thread or at #avs-plus on Rizon.