A lightweight freeware available on Software Informer that uses a computer's sound card input to display a virtual EKG waveform. 2. Free EKG Simulators & Educational Tools
Specifically designed for users of EMAY portable monitors, this Microsoft Store app is free to download for saving and sharing reports on Windows.
A standalone program for Windows and macOS that allows users to view and manage ECG files. It is often used by hobbyists and developers.
Available on the Microsoft Store , this tool offers realistic simulations of various cardiac rhythms for training environments. 3. Best Free EKG & Heart Health Apps for Mobile (2026)
If you have captured EKG data (e.g., from a portable monitor or Arduino sensor), these free programs help you view and analyze the recordings:
A highly-regarded, free interactive simulation that helps users study the relationship between heart activity and PQRST waveforms.