Universal 3D Robot Viewer — URDF · SDF · MJCF · STL WebGL Visualizer

Drag and drop any URDF, SDF, MJCF, or STL robot file for real-time WebGL 3D visualization in your browser. Pose joints interactively, inspect geometry, no installation needed.

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SimTooReal — Free AI-Powered URDF · SDF · MJCF Robot Generator, Converter & Validator

SimTooReal is a unified AI toolchain for generating, converting, visualizing, and validating robot description files — URDF, SDF, and MJCF — directly in your browser. No install. No config. Powered by Claude AI and a Rust backend.

Tools

AI Robot Generator — Describe any robot in plain English and get a complete, physics-correct URDF, SDF or MJCF file in seconds.
Format Converter — Losslessly convert between URDF, SDF and MJCF, preserving masses, inertias, joint limits and the full kinematic chain.
Physics Validator — Run 15+ structural and physics checks on any robot file and receive a quality score with fix suggestions.
Universal 3D Viewer — Drag-drop any URDF, SDF, MJCF or STL file for real-time WebGL 3D visualization with interactive joint control.

Supported Simulators

Isaac Sim · MuJoCo · Gazebo · Isaac Lab · ROS 2 · PyBullet

SimTooReal is completely free to use with no signup required.

Universal 3D Robot Viewer — URDF · SDF · MJCF · STL WebGL Visualizer

Drag and drop any URDF, SDF, MJCF, or STL robot file for real-time WebGL 3D visualization in your browser. Pose joints interactively, inspect geometry, no installation needed.

<- Back to SimTooReal home

SimTooReal — AI-Powered Robotics Developer Tools for URDF, SDF & MJCF files. Free, instant, no signup.