Apps
Interactive sailing simulators — built for the web, free to use, and embeddable on any site. The same engines power the study tools in Learn and the copy-paste embeds for sailing schools.
ColRegs Lights
Rotate any vessel and read its navigation lights from every angle. Study mode and quiz mode.
Day Shapes
Drag-to-rotate day shape silhouettes — anchored, NUC, RAM, fishing, towing, and more.
Sound Signals
Hear ColRegs sound signals synthesised live — fog, manoeuvring, anchor, aground. Identify-the-signal quiz mode.
Radar Simulator
Animated radar scope with five collision scenarios. Real-time CPA + TCPA, draggable EBL and VRM.
Embed any of these on your own site
Every simulator has a copy-paste iframe version. See the full embed gallery at /embed.