Interactive Simulations& Professional Engineering Tools
Free simulators, calculators, and analysis tools for science, engineering, and finance. From beam deflection to thermodynamic cycles, structural analysis to portfolio optimization — explore, calculate, and verify.
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Our platform combines cutting-edge technology with educational best practices.
WebGPU Powered
High-performance rendering for complex interactive simulations.
AI Assistant
Your own AI assistant running locally in your browser. No subscriptions, no fees.
Interactive Learning
Adjust parameters in real-time and visualize complex concepts.
SimLab — Compute Anything in Your Browser
510+ MATLAB®-compatible functions. Matrix operations, symbolic math, plotting, signal processing, control systems, and more. No installation. No license fees.
- ✓ Full programming: for loops, functions, if/else
- ✓ Interactive plotting with Plotly.js
- ✓ 16 ready-to-run example scripts
- ✓ MATLAB® costs $2,150+/year — SimLab is free
Trending Simulations
Trending today
Fermentation Kinetics & Microbial Growth Curve Simulator
Interactive bioprocess simulator for microbial growth curves, Monod kinetics, and fermentation product formation. Explore 4-phase growth (lag, exponential, stationary, death), 8 fermentation types (bread, beer, wine, yogurt, sauerkraut, kimchi, kombucha, vinegar), Luedeking-Piret product formation, Arrhenius temperature effects, pH monitoring, and CO2 production. Free online tool for bioprocess engineering students and fermentation enthusiasts.
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Thomson Cathode Ray Experiment
Free Thomson cathode ray experiment simulator. Adjust electric and magnetic fields to deflect electron beams and measure the charge-to-mass ratio (e/m). Replicate the discovery of the electron. Perfect for physics students. Try it free!
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Nuclear Reactor Power Plant Simulator
Interactive nuclear reactor power plant simulator covering 8 reactor types: PWR, BWR, CANDU, SMR, micro reactors, thorium MSR, sodium-cooled fast breeders, and Gen IV HTGR. An advanced-engineering-tool for nuclear power analysis with real-time neutronics, thermal-hydraulics, decay heat modeling, LCOE economics, and animated reactor schematics.
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Solar System Simulator
Free 3D solar system simulator with accurate orbital mechanics. Zoom into planets, track real orbital periods, and compare sizes and distances. Includes all 8 planets, dwarf planets, and moons. Perfect for astronomy students. Try it free!
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Cellular Automata Explorer
Interactive cellular automata explorer with Wolfram 1D rules (0-255), Conway Game of Life patterns, and custom rule editor. Visualize entropy, population dynamics, and emergent complexity.
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Stock Market Simulator: Interactive Paper Trading & Portfolio Analysis Tool
Free stock market simulator with real-time candlestick charts, paper trading, portfolio analysis, Sharpe ratio, max drawdown, and technical indicators. Practice trading with simulated market dynamics, order types, and risk management tools.
View SimulationNewest Simulations
Recently published simulations fresh from our lab
Optimum Autofrettage Pressure Solver: Quartic Fits, Flat Optima and Sobol Uncertainty
Free optimum autofrettage pressure calculator. Differentiate FE-fitted quartics of bore hoop stress for a 15-5PH thick cylinder, find the 960 / 937 / 882 MPa optima, check ASME KD-521(c) overstrain under von Mises and Tresca, and attach uncertainty to every input with live Sobol indices.
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Shakedown Boundary Calculator: Autofrettaged Cylinder Bree Map with Melan Elastic-Shakedown Limit
Free elastic-shakedown calculator for thick-walled autofrettaged cylinders. Drag the operating point on a live Bree-style map of pulsating pressure against through-wall temperature range, see which limit it breaks first, and get the minimal pressure or temperature cut back to shakedown.
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Cracked Cylinder Prototype Similarity Checker: Fracture Test Scaling and Size Effect
Free fracture-similitude tool for down-scaled cracked cylinders. Set a/W, r_i/r_o, (p_i - p_o)/sigma_y and r_p/W, pick a scale factor, and the tool builds the original and prototype, audits J scaling, plastic-zone size ratio, crack-tip offset and the ASTM E399 size rule, then solves in closed form for the largest scale-down you can trust.
View SimulationYour Personal AI Tutor — Running Locally in Your Browser
Meet your new study companion. Our AI Tutor runs entirely on your device using WebGPU — no cloud servers, no subscriptions, no data leaving your computer. Choose from three models based on your device's capabilities and get instant help understanding any simulation.
Lite
~1.4 GB • Desktops, laptops & Chrome iOS (experimental)
Fast responses for quick questions. Perfect for phones, tablets, and older laptops.
Standard
~2 GB • Desktops & laptops only
Best balance of speed and quality. Great for most laptops and desktops.
Advanced
~2.3 GB • Desktops & laptops only
Best reasoning for complex physics problems. Requires modern GPU with 4GB+ VRAM.
Device Compatibility
Explore by Category
Browse simulations organized by subject area
Astronomy
Stars, planets, galaxies
23 simulationsBiology
Cells, genetics, ecosystems
49 simulationsChemistry
Reactions, molecules, elements
34 simulationsComputer Science
Algorithms, data structures
85 simulationsEarth Science
Geology, weather, climate
36 simulationsEngineering
Structures, circuits, systems
506 simulationsFinance & Economics
Financial concepts, investment strategies, and economic principles.
50 simulationsHealth
Body systems, disease prevention, and wellness.
45 simulationsMathematics
Algebra, geometry, calculus
48 simulationsPhysics
Mechanics, waves, thermodynamics
109 simulationsSocial Sciences
Policy models, social dynamics, and decision-making.
26 simulationsReady to Get Started?
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