Making your own funscript: a beginner's guide

Anyone can script a video. OpenFunscripter is free, the workflow is meditative, and your script joins a long tradition. Here is how to start.

If you have ever wanted to script a video yourself, you can. The tools are free, the workflow is meditative for some users (tedious for others), and the community is welcoming. A 10-minute scene typically takes a beginner 4-8 hours to script well.

This article is the gentle introduction.

What you are making

A funscript is a small JSON file that lists moments in time and positions. You tell the software "at this moment, the toy should be here", and the file is a list of those instructions over the length of the video.

You do not need to know JSON. The tool handles the file format. You watch the video, click to mark positions, and the tool writes the file for you.

See What is a funscript for the format basics.

What you need

The video you want to script. Local file on your computer.
OpenFunscripter (OFS). Free, open source, Windows and Linux. Download from github.com/OpenFunscripter/OFS or its mirror.
Time. Plan on 4-8 hours for a 10-minute scene if you are new.
A pair of headphones if you live with people.

You do not need a toy to script. (Some scripters connect a toy and feel each section as they write it, which catches feel-bad moments early, but it is optional.)

Install OpenFunscripter

Go to the OFS GitHub releases page.
Download the build for your OS.
Install or extract.
Launch.

OFS looks like a basic video editor. There is a timeline at the bottom, a video panel at the top, and a small palette of tools on the side.

Load a video

File > Open > pick your video.

OFS scrubs through the timeline as you click. Audio plays. You can change playback speed (0.25x is great for scripting precise moments).

The basic workflow

Watch the scene through once at 1x. Get a sense of the rhythm. Where does the action build? Where does it pause? What is the climax?
Slow down to 0.25x. Now you can mark precise moments.
At each moment of action, click the timeline to add a point. Set its position (0-100) with the keyboard arrow keys or the mouse.
Repeat for the full scene. You are building a curve of positions over time.

OFS has a heatmap view that shows your script as a bar chart of intensity. Tall bars = high positions, short bars = low. Use this to check pacing as you go.

A few core techniques

Mark the keyframes first

Do not try to fill in every micro-motion right away. First mark the obvious peaks (every clear action) and valleys (every pause). Then go back and fill in the in-between with smaller movements.

This is faster than scripting linearly and produces better results.

Use repeating sections

If the scene has a section where the rhythm is steady (e.g., consistent thrusts at the same pace), you can mark the first few cycles, then copy-paste them across the section. OFS has tools for this. You do not need to mark every individual point in a steady rhythm.

Pause where the scene pauses

If on-screen action stops for a moment, your script should drop to a low position or zero. Letting the toy rest at the right moments makes the active parts feel more active.

Test on a toy if you can

If you have a toy, pair it with ToyControl, load your in-progress script, and play through a section. Does it feel right? Is the timing off? Adjust before continuing.

Common beginner mistakes

Marking too much motion. If you mark every tiny shift, the toy never rests and the script feels frantic. Less is often more.
Marking too little. A flat script is the opposite problem. Aim for visible variation in the heatmap.
Wrong frame rate. OFS reads the video's frame rate from the file. If you have a re-encoded video with mismatched frame rate, the timing can be off. Use the original cut if possible.
Skipping pauses. When the camera changes angle or the action pauses on screen, the script should reflect it. Resist the urge to keep the toy moving.

Naming your script

The filename of your .funscript should match the video file. For example:

Video: scene_42.mp4
Script: scene_42.funscript

This is how ToyControl (and most players) auto-match a video to its script. See How auto-match finds the right script.

Sharing your script

When you finish:

Test it through ToyControl with a toy. Does it feel good?
Get feedback from a friend or partner if you can.
Upload to eroscripts.com (community) under the scene name.

The community will leave comments. Use them to improve your next script.

Time to script: a benchmark

For a 10-minute scene:

First script: 6-10 hours.
After 3 scripts: 4-6 hours.
After 10 scripts: 3-5 hours.

You get faster with practice. The tools also speed up: pattern templates, copy-paste sections, and macros all reduce time-per-minute-of-video.

Some experienced scripters can do 10 minutes in 90 minutes. They are exceptions; do not benchmark against them on your first try.

A note on AI-generated scripts

Auto-script tools exist (motion detection, AI-based). They are improving but they are not yet a replacement for hand-scripted work, especially for nuanced scenes.

A common workflow is to use auto-generation as a baseline and then hand-polish for 1-2 hours. This is the future for many scripters. See Where interactive adult content is going.

Why script?

A few reasons:

Your favourite scene has no script. Now it does.
Existing scripts are not how you would script it. Make your own.
You enjoy the craft. The community does.
You want to support a creator. Many scripters release work on Patreon and the income is real.

The barrier to entry is low. The tools are free. The community welcomes new scripters.