Simulate planar mechanisms in seconds. No install required
Design, simulate, and analyze planar linkage mechanisms directly in your browser. MechSim is a high-performance, zero-install kinematic simulator built for engineers, students, and makers. Featuring a robust Newton-Raphson constraint solver, it delivers professional-grade accuracy for complex 2D motion. Sketch your ideas, iterate in real-time, and visualize velocity or acceleration without the bloat of traditional CAD. Powerful, accessible, and 100% free. Engineering simplified.
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