MechSim — Kinematics simulator
Simulate planar mechanisms in seconds. No install required
MechSim — Kinematics simulator launched on April 3, 2026 with 2 votes, #4,561 of 21,248 launches that month.
In plain words
MechSim is a browser-based kinematic simulator that lets users design and analyze planar linkage mechanisms without installation. It uses a Newton-Raphson constraint solver to handle complex 2D motion, allowing engineers, students, and makers to sketch mechanisms, iterate in real-time, and visualize velocity and acceleration. Users can create everything from simple four-bar linkages to complex multi-slider chains, then simulate and export kinematic data. The tool requires no account or download and is entirely free.
written from the facts on this page · September 2026
From the sources
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.
Design, simulate, and analyze planar linkage mechanisms in your browser. Free, zero-install kinematic simulator with Newton-Raphson constraint solver. Full tutorial included.
Drop pins, connect links, add sliders — and watch your mechanism come alive. Powered by a Newton-Raphson constraint solver. No install, no account, no limits. MechSim runs entirely in your browser — no downloads, no account required. Build any planar mechanism from simple four-bars to complex multi-slider chains, then simulate, record, and export kinematic data. Place grounded pivots, free joints, and connect them with rigid links. Drag to reposition, click to edit properties. Linear rails, arc paths, and full circle sliders — passive or motor-driven. Mix slider types in a single mechanism. Levenberg-Marquardt constraint solver resolves complex chains in real time. Configurable tolerance…from mechsim.app
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