avisynth
The AviSynth wiki provides documentation, FAQs, and filter references for the video processing tool.
About avisynth
The AviSynth wiki is the documentation site for AviSynth, a tool for video post-production. AviSynth edits and processes video through text scripts and works as a frameserver, so it can apply edits without creating temporary files. It has no graphical user interface.
The wiki includes beginner guides, a FAQ, a scripting syntax reference, and separate lists of internal and external filters. It also links to download pages for the current AviSynth+ build and for older builds that are marked as deprecated. The homepage says the site is maintained by several people and depends on donations to cover hosting costs.
Key features
- Beginner guide titled 'Your first script' for new AviSynth users
- Filter introduction covering the most common AviSynth filters
- Internal filter reference organized by category
- External filter reference listing separately downloadable filters by category
- Scripting syntax reference covering variables, operators, and control structures
- Installer for switching between AviSynth versions
Best for: People learning AviSynth scripting for video editing and processing, or those who need to look up filters and syntax.
Good for
- Covers topics from first-script tutorials to detailed grammar and execution model references
- The homepage describes scripts as human readable, so projects are self-documenting
Watch out for
- AviSynth has no graphical user interface and depends on writing scripts
- Several download options are marked as deprecated, and some older versions have listed known issues
avisynth at a glance
- Category
- Design & Creative › Video Editing & Animation
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Video Editing & Animation
avisynth alternatives
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avisynth FAQ
Does AviSynth have a graphical interface?
No. The homepage states that AviSynth itself does not provide a graphical user interface and instead relies on a script system.
Which AviSynth build is listed as current?
The wiki lists AviSynth+ as the current build, described as having new features, backward compatibility, and native support for Unix-like operating systems.
Where can I find the scripting syntax reference?
The wiki has a Script Syntax section that it describes as the official reference documentation, covering variables, operators, internal functions, and user-defined functions.
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