Design Any
Race Circuit
On Earth.
Drop waypoints on any real-world map, close the loop, and get instant lap time estimates, corner counts, speed zone visualisation, and a circuit character rating — calculated automatically for Formula 1, GT3, and MotoGP.
Everything a circuit designer needs.
Real-World Maps
Design on a live dark map or switch to satellite view. Place your circuit anywhere on Earth, from Monaco to your local industrial estate. Starts on the current F1 calendar by default.
Instant Lap Time Estimates
Close the loop and get a calculated lap time, top speed, minimum speed, and average speed. The model accounts for acceleration, braking, and cornering limits specific to each car class.
Multi-Class Support
Switch between Formula 1, GT3, and MotoGP vehicle profiles. Each has distinct lateral acceleration limits, power curves, and braking characteristics. Speed zone thresholds update per class.
Speed Zone Visualisation
Once the loop is closed, every segment of the track is coloured by speed: red for full speed, orange for fast corners, yellow for medium, and green for slow. Updates live as you drag waypoints.
Circuit Character Rating
The tool analyses corner density and gives your circuit a character: Ultra Technical, Technical, Balanced, or High Speed. It also counts corners, measures your longest straight, and calculates race laps needed.
30-Step Undo History
Every waypoint placement and drag is tracked. Undo up to 30 steps with Z or Ctrl+Z. Double-click any waypoint to delete it individually. Escape clears the entire circuit.
Export as PNG
Export a high-resolution PNG of your circuit with the full stats panel baked into the image. Press E or use the Settings menu. The map, track, and analysis are all captured in one file.
Shareable Circuit Links
Generate a URL that encodes your full circuit: every waypoint, map position, zoom level, and whether the loop is closed. Anyone with the link can open and continue editing your design.
24 F1 Circuit Presets
Jump directly to all 24 circuits on the current Formula 1 calendar, from Melbourne to Abu Dhabi. Each preset places the map at the exact zoom and location to start tracing a real circuit.
Three classes. One track tool.
Formula 1
The pinnacle of open-wheel racing. Extreme aerodynamic downforce that increases with speed gives F1 cars a higher cornering limit at high-speed sweepers than at slow hairpins, producing a very different speed profile from GT3 on the same circuit.
GT3
The world's most accessible top-tier class. Less downforce and lower cornering grip than F1 means medium-speed corners are noticeably slower, giving GT3 a different rhythm through the same layout.
MotoGP
Motorcycle racing at its limits. Lower cornering grip than both four-wheeled classes means slow corners are genuinely slow, but an extraordinary power-to-mass ratio makes MotoGP match F1 for top speed on long straights.
From blank map to race circuit in minutes.
Choose a starting location
Select from all 24 circuits on the current F1 calendar, or navigate to any point on Earth. The map opens on Monaco by default.
Place and adjust waypoints
Click to place waypoints. The circuit is drawn between them using a smooth Catmull-Rom spline. Drag any waypoint to reshape the track in real time. Double-click a waypoint to delete it. Right-click and drag to pan the map without placing points.
Close the loop
With 3 or more waypoints placed, press C or click Close Loop. The circuit closes and the full analysis unlocks: lap time, top and minimum speed, corner count, longest straight, race laps, and speed zone visualisation.
Analyse, export, and share
Switch between F1, GT3, and MotoGP to compare how each class handles your circuit. Export a PNG with the stats baked in using E, or press S to copy a shareable link that others can open and edit.