Static rhythm images teach you to recognize a picture. The room asks you to read a moving tracing under time pressure — and that's a different skill. This simulator builds the real one.
What it does
- Dual-lead, real-time rhythms — Lead II and V1 render live, the way monitors actually show them.
- 40+ rhythms — from normal sinus to the blocks, ectopy, atrial fibrillation and flutter, and ventricular rhythms.
- Adjustable rate — speed a rhythm up or slow it down to see how it behaves.
- Calipers & marching — measure intervals and prove regularity, exactly like at the bedside.
- A real grid — standard 25 mm/sec, 10 mm/mV, so your measurements mean something.
Who it's for
New techs & students
Build recognition before you're reading a rhythm with a patient on the table.
RCIS / RCES candidates
Rhythm interpretation is a core exam domain. Drill it until it's automatic.
Nurses & monitor techs
Sharpen the read you rely on every shift.
Educators
A live teaching tool for rounds, class, and orientation.
Open it now — no account needed.
Pick a rhythm, press start, grab the calipers. That's the whole learning curve.
Part of a bigger pathway
The simulator is the free front door to ECG Foundations, our 28-module rhythm interpretation course, and to the full CardioPathway curriculum labs use to train new techs. Start free here; go deep when you're ready.
Questions
Is it really free?
Yes — the simulator is free to use in your browser. Advanced rhythm sets, quizzes, and teaching tools are part of the premium experience and the full courses.
Do I need to install anything?
No. It runs in any modern browser on desktop or mobile. Just launch it.
Can our lab use it for teaching?
Absolutely — it's built for exactly that. For structured, competency-tracked training across a team, see ECG Foundations or book a call.