RoboPlay

An open-source browser tool for the SO-101. Replay recorded episodes in physics-simulated 3D, teleoperate a virtual arm, and plug it all into the LeRobot ecosystem. Early days; more soon.

What it is

I'm building an open-source tool that puts an SO-101 in your browser: load an episode recorded with LeRobot and watch it replay in physics-simulated 3D, teleoperate the virtual arm yourself, and, down the road, record new episodes and run trained policies, no hardware required.

Status

I'm actively working on it, but it's early. The design is still settling and the first pieces are on the bench. There's nothing to run yet; this page is a marker for the project, not the project. I'll share more here, and open up the repo, once it's in a shape worth showing.

This project
Status
In progress
Started
Jul 17, 2026
Stack
TypeScript · three.js · MuJoCo WASM · ONNX Runtime Web

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