AV

AviSynth

AviSynth is a powerful open-source frameserver tool for video post-production on Windows, providing script-based video editing and processing without temporary files. It uses a simple yet powerful scripting language to enable precise, consistent, and reproducible video editing.
Latest: 3.7.5
Last checked: Jul 12, 2025 7:08pm
Rank: 4958/15140
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Overview

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License: GNU General Public License GPLv2Winget: Available

Version & Lifecycle

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Current: 3.7.5 Avg cadence: Infrequent, community maintained

Top Contributors

Top sitewide contributors:

  1. Anbarasan
  2. nico_k
  3. Bob
  4. Vigneshwaran

Community Notes

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Release Notes & Updates

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Also known as

Other names people use for this app — helps search and matching.

avisynth

Packaging Notes

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AviSynth is a script-based frameserver for video post-production without a GUI; AviSynth+ is a modern fork with extended features and active maintenance

Notes

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AviSynth itself does not provide a graphical user interface; it relies on scripts. AviSynth+ is a popular fork that adds 64-bit support, multithreading, and other modern features while maintaining compatibility.