The funscript editor in FunGen

FunGen isn't only an AI generator — it's a full funscript editor. Build a script by hand on a frame-accurate timeline, or clean up what the AI generated, and play it straight to your device, without switching tools. The editor is free to use.

A frame-accurate, multi-axis timeline

Edit against the video frame by frame: add, move and tune points, set a point to an exact height with a number key, or pull the nearest point to the playhead and set it in one keystroke. Every axis — stroke plus roll, pitch, surge, sway, twist — gets its own track, and you can overlay one axis on another to line them up.

Transforms, plugins and pipelines

Reshape a whole selection or the entire script with dozens of one-click transforms and plugins: amplitude, smoothing, speed limits, timing, and more. Chain your favourites into a pipeline and run a full cleanup in a single click — autotune, reshape, limit.

Chapters, bookmarks and a workflow that remembers

Split a long scene into named, colour-coded chapters, drop bookmarks with one key, and reopen right where you left off. Undo and redo are unlimited and survive closing and reopening a project, so your edit history is never lost. FunGen also opens .funscript and .fungen files directly on Windows, macOS and Linux.

The Doctor: know it's ready

Before you ship a script, the Funscript Doctor gives it a device-aware quality score from 0 to 100 — flagging speed violations, off-frame points, dead zones, jitter and missing strokes, and fixing most of them in one click. It's the difference between a script that looks right on the timeline and one that actually feels right on the hardware.

Generate, then refine

The fastest workflow is both halves together: let the AI generate a funscript from your video, then polish it in the editor. New to the format? Start with what a funscript is.

Download FunGen — the editor, player and library are free; full-quality AI generation is the Pro unlock.