Build
Draw walls and obstacles to create an environment.
Browser-based robotics sandbox
Learn robot navigation.
No ROS2/Ubuntu required.
Explore sensing, mapping, and path planning directly in your browser without installing ROS 2, Ubuntu, Gazebo, or owning physical hardware.
No installation required
simulator.preview● live
01 / The starting point
Robotics has a
setup problem.
Learning autonomous navigation often starts with a long list of prerequisites: Ubuntu, ROS 2, Gazebo, robot packages, configuration, and hardware.
Start with the concepts, not the setup.
DryRun gives you a focused place to experiment first. It is inspired by ideas used in real robotics navigation systems not a replacement for the full stack.
02 / The loop
How DryRun works
Change a setting. Watch the consequence. Build intuition.
Sense
Watch the robot perceive nearby space with simulated sensors.
Map
See unknown space become known as the robot explores.
Plan
Run A* or Dijkstra and visualize how routes are found.
03 / Navigation modes
Three ways to think
about a map.
GLOBAL
Full map known up front.
A* and Dijkstra search an environment the robot already understands.
REACTIVE
Senses and moves on its own.
Navigate using live observations instead of receiving the full map beforehand.
SLAM
Maps as it goes, then plans.
Reveal the environment through sensing, then plan from the map discovered.
04 / Fundamentals
Explore the
fundamentals.
A practical sandbox for building a mental model of what robots sense, know, and do.
01A*02Dijkstra03LiDAR04Ultrasonic sensing05Occupancy grids06Known vs unknown07Mapping08Path planning09Goal navigation
05 / Before the hardware
Understand first.
Go deeper later.
TRADITIONAL SETUP
↓Ubuntu
↓ROS 2
↓Gazebo
↓Robot packages
↓Configuration
→Start experimenting
DRYRUN
↓Open browser
→Start experimenting
When you're ready for the real stack, the concepts are already familiar.
06 / The bridge
From browser sandbox
to real robotics.
DryRun is not a replacement for ROS 2, Gazebo, Nav2, SLAM Toolbox, or real hardware. It focuses on intuition rather than research-grade simulation, a gentler first step before the full robotics environment.
Explore the sandboxReady when you are
Give it a DryRun
Start exploring robot navigation in your browser.
Launch simulator