ControlsLab

ControlsLab is a professional-grade system dynamics and controls simulator designed for engineering students, educators, and practicing engineers.

Simulate a mass-spring-damper system in real time. Adjust parameters with intuitive sliders and instantly see how the system responds - no coding required, no MATLAB license needed.

FREE FEATURES

SYSTEM SIMULATION
- Mass, damping, and spring parameter control
- Step, ramp, parabolic, and sinusoidal inputs
- Adjustable initial conditions x(0) and dx(0)
- Input signal overlay on time response plot

VISUALIZATION
- Live time-domain response plot
- S-plane pole visualization
- System stability classification
- Overdamped, underdamped, critically damped detection

ANALYSIS MODES
- Open-loop mode: plant driven directly by input
- Closed-loop mode: negative feedback with configurable setpoint

PRO FEATURES - $4.99
One-time purchase, no subscription

PID CONTROLLER
- Full negative feedback implementation
- P, PI, PD, and PID controller types
- Live Kp, Ki, Kd gain tuning with instant response
- Adjustable reference setpoint

FREQUENCY DOMAIN
- Bode plot: magnitude (dB) and phase (degrees)
- Logarithmic frequency axis
- Natural frequency, damping ratio, and bandwidth readouts

WHO IS THIS FOR?

- Undergraduate engineering students studying dynamic systems and feedback control
- Graduate students reviewing control theory
- Professors and educators demonstrating system behavior in lectures
- Practicing engineers doing quick back-of-envelope system analysis
- Anyone curious about how control systems work

ControlsLab turns abstract differential equations into visual, interactive experiences. Move a slider and watch poles migrate across the S-plane. Toggle a controller and see overshoot disappear in real time.

No prior programming experience required.