About This Site

This site is unofficial documentation for AviUtl2 created by Nanashi..
It converts and adapts the contents of AviUtl2's aviutl2.txt and lua.txt for publication.

The source code is available on GitHub.

A mirror of the AviUtl2 SDK is also available here.

NOTE

The document was translated from Japanese to English using GPT-5.5.
The translation may contain inaccuracies, and the original Japanese version should be considered the primary source.

Translations of UI elements such as menu items are based on AviUtl2 Community Translation.
It is recommended to install the community translation to match this documentation.

Main Changes

• Rewritten in Markdown.
  • Keyboard keys are displayed with Key markup.
  • Lua code and file paths that appear inline are displayed as inline code.
• Applied StyLua to Lua code.
• Added search.
• Changelog: newer versions are shown first.
• Changelog: entries are formatted as bullet lists.
• Changelog (Lua): added the corresponding AviUtl2 version.
• Added llms.txt.
• Added notes to several sections.

NOTE

Notes are displayed like this.