Funscript editor and AI generator, running on your own machine. Turn any 2D or VR video into a funscript, refine it frame by frame on a multi-axis timeline, and play it straight to your device. Free tracking algorithms included; a Pro Pass unlocks the full-quality AI models.
Enjoy your time.
fungen.app · Download · Discord
FunGen is a complete, cross-platform funscript editor and AI generator. A single native binary per platform: no Python runtime, no shell scripts, no mismatched libraries to chase. Just download one file and run.
Generate, edit, refine. Or just generate and play. Or even, just play.
- Timeline. Frame-accurate point editing, rich selection (peaks/valleys, top/middle/bottom, by-chapter, left/right of the playhead), transforms (equalize, isolate, ripple-delete, repeat-stroke, snap-to-playhead magnet, and more), parametric stroke generation, all with live preview. Plus a plugin / macro system for repeatable edits.
- Multi-axis. Full multi-axis scripting (stroke, surge, sway, twist, roll, pitch). Open several scripts or axes as lanes side by side and ghost one over another to compare and reference while you edit.
- Funscript Doctor. Scores your script's quality, flags issues (speed limits, gaps, missing strokes…) and offers one-click auto-fixes.
- Chapters, bookmarks & heatmap. A chapter bar with custom types, bookmarks, and a colored heatmap.
- Unlimited undo/redo. With a visual history browser that survives closing and reopening a project.
Try it free, never forced to buy. Turn raw video into a draftable funscript in one pass, then refine by hand. Several ways in:
- FunGenerate. Proposes the next 20 seconds of motion from the playhead, shown as a live ghost over your script; accept or reject before it commits. Judge the AI's quality on your own content before deciding anything.
- Full auto-generation. Run the AI tracking pipeline over the whole video.
- Live recording. Drive the motion yourself (mouse or controller) while it plays, and record it live.
- Quick-generate from Welcome. Drop a video in and go.
Two tiers, no lock-out:
- Free. Base algorithmic generation for everyone, plus the AI generation itself behind a short metered wait. You can genuinely try it.
- Pro. Removes the wait and unlocks the dedicated high-quality 2D and VR AI models. See pricing.
- Built-in player. Hardware-accelerated decoding; scrub and preview without a separate player.
- Device output. The Handy (USB, Bluetooth and network), Kiiroo Keon and Onyx, Fleshlight Launch, Lovense Solace Pro, Autoblow, Vacuglide, Vorze Piston, OSSM, Hismith machines, and OSR2 / SR6 / SSR1 over T-Code. Anything else through Buttplug.io / Intiface. Single- and multi-axis, with an on-screen position gauge.
One native binary per platform (Windows / macOS / Linux), localized in multiple languages. Actively developed, and out of beta since 2.6.0. Feedback from the community directly shapes it, so bug reports and feature requests are very welcome.
Get the latest build for macOS, Windows, or Linux from the Releases page.
New to funscripts, or want the details? The docs walk through it:
- What is a funscript?
- Generate a funscript from any video
- The funscript editor
- VR funscripts
- Supported devices, including The Handy and OSR2 / SR6
- Changelog
Step-by-step walkthroughs:
- How to make a funscript: AI generation, by hand, recorded live, or from the audio.
- Funscript editor: timeline, selection, transforms, multi-axis, chapters and the Doctor.
Join the Discord community for discussions, support, and updates.
If FunGen is useful to you, you can support its development on Patreon or PayPal.
FunGen is free for personal, non-commercial use only. See LICENSE for the full terms.
For commercial or business use, please get in touch: fungen_ai@proton.me