90+ simulators and growing
Physics, chemistry, finance, education, and life tools — all in one place.
Free interactive tools
FreeSimulators 90+ free simulators, zero sign-up
From gravity and chemistry labs to mortgage calculators and typing tests — every simulator runs in your browser, free, with no account needed.
Physics, chemistry, finance, life tools — all free, all interactive, all shareable.
Tools for every curiosity
FreeSimulators covers science, finance, and everyday life in one place.
Interactive science and chemistry labs
Explore gravity, pendulums, airfoils, gas laws, acid-base titrations, and solar eclipses with real-time visualizations. No equipment, no lab — just your browser.
Practical finance and life tools
Plan a mortgage, estimate commute costs, track hydration, or calculate a restaurant tip — tools built for real decisions, not just homework.
Just-for-fun simulators
Pretend to hack a mainframe, win the Hunger Games, or slam a floor in frustration — viral moments and playful tools that are impossible not to share.
Why FreeSimulators?
Every tool is built around one goal: make complex ideas instantly explorable.
No sign-up, no paywall
Every simulator is free to use in your browser. No account, no install, no limit.
Real-time interactive controls
Sliders and inputs update the result instantly — explore by doing, not just reading.
Shareable by URL
Your settings are encoded in the link. Share a specific scenario with one copy-paste.
Works on any device
All simulators are mobile-optimized and run in any modern browser.
5 languages supported
FreeSimulators is available in English, Chinese, Japanese, Indonesian, and Malay.
Other free simulators
Explore more browser tools from FreeSimulators.
Cat Simulator
Become a cat for a minute, choose a breed and name, run daily cat actions, and share the result.
Hug Simulator
Create a gentle 3D hug scene, compare height difference, switch viewpoints, and share the result.
Gravity Simulator
Drop planets, stars, and black holes into an N-body physics sandbox with shareable presets.
Solar Eclipse Simulator
Enter a city or coordinates, choose an eclipse event, and estimate local visibility, timing, obscuration, and safety reminders.
Acid Base Titration Simulator
Choose acid and base types, add titrant drop by drop, and see pH, color change, equivalence point, unknown concentration, error, and conclusion.
Chemical Equilibrium Simulator
Choose a reversible reaction, set initial concentrations, temperature, pressure, and catalyst, then watch concentration curves reach equilibrium and explain shifts.
Budget Simulator
Enter income, rent, food, transportation, entertainment, shopping, subscriptions, insurance, debt repayment, and savings goals to see remaining cash and budget pressure.
Mortgage Simulator
Enter home price, down payment, loan amount, rate, term, taxes, insurance, and HOA to compare monthly payment and total interest.
Logic Gate Simulator
Choose AND, OR, NOT, NAND, NOR, or XOR gates, toggle 0/1 inputs, read truth tables, and build simple circuits.
Typing Test Simulator
Choose a 30 second, 1 minute, or 3 minute typing test to track WPM, accuracy, errors, backspaces, and progress.
Pet Age Simulator
Choose a cat, dog, rabbit, or dog size, enter real age, and estimate human-equivalent age, life stage, and care tips.
Pizza Oven Simulator
Choose oven temperature, pizza thickness, toppings, and bake time to get crust score, doneness, and baking advice.
Compound Interest Simulator
Choose a currency, enter principal, periodic contributions, annual return, years, compounding, and targets to compare long-term growth scenarios.
Spaceflight Simulator
Build a 2D modular rocket, estimate mass, thrust-to-weight, Delta-v, orbit readiness, launch profile, mission outcome, and landing advice.
World Cup 2026 Bracket Simulator
Enter 2026 group-stage scores, auto-calculate standings and best third-place teams, then click through the full knockout bracket to crown a champion.
Truck Route Profit Simulator
Enter distance, cargo weight, freight quote, fuel, tolls, driver wage, loading time, maintenance, and empty return risk to calculate route profit and minimum rate.
Farming Profit Simulator
Choose crop type, acres, seed, fertilizer, irrigation, machinery, labor, yield, market price, and weather risk to compare revenue, costs, break-even price, and crop mix.
Bus Route Simulator
Enter route length, stops, headway, fleet size, speed, riders, fares, fuel cost, driver wages, and peak share to balance passenger experience with operating profit.
Flight Landing Simulator
Choose an aircraft, approach speed, weight, runway, wind, crosswind angle, flaps, braking, and runway surface to estimate landing distance, crosswind risk, overrun probability, and landing score.
Golf Shot Simulator
Choose a club, enter swing speed, launch, ball speed, spin, wind, slope, and turf to estimate carry, roll, total distance, side offset, risk, and club strategy.
Car Mechanic Repair Simulator
Choose vehicle symptoms, test the first component to inspect, and estimate faults, parts, labor, repair time, risk, quote range, and diagnostic score.
Dice Probability Simulator
Choose dice count, sides, modifier, target, comparison, advantage, disadvantage, rerolls, and exploding dice to calculate success odds, average result, range, and distribution.
Tabletop Battle Simulator
Enter attackers, hit rate, damage dice, critical rules, defense, armor, hit points, and rounds to estimate damage, kill odds, survival odds, expected rounds, and tactic win chance.
Parking Simulator
Enter vehicle dimensions, wheelbase, turning radius, parking bay size, road width, and parking method to estimate fit, reverse angle, safety clearance, and adjustments.
Flight Fuel Range Simulator
Enter aircraft type, fuel capacity, cruise burn, speed, wind, reserve fuel, payload, and altitude to estimate range, flight time, fuel margin, and return risk.
Farm Equipment Cost Simulator
Enter equipment purchase price, useful life, annual hours, fuel, repairs, insurance, depreciation, loan cost, and acres to compare buying, renting, or outsourcing farm machinery work.
Livestock Feed Cost Simulator
Choose cattle, dairy cows, sheep, goats, pigs, poultry, horses, or rabbits, then enter count, intake, feed price, feeding days, supplement ratio, and waste rate to estimate feed budget and waste cost.
Ranch Profit Simulator
Enter livestock count, purchase cost, sale price, feed, vet, labor, land rent, equipment, mortality, and feeding cycle to estimate batch profit and break-even sale price.
Crop Yield Simulator
Choose a crop and enter area, soil quality, rainfall, irrigation, fertilizer, planting density, pest risk, and weather stress to estimate low, medium, and high yield ranges.
Thermocouple Simulator
Adjust hot junction temperature, cold junction temperature, polarity, compensation, open probes, loose contacts, and copper extension mistakes to see thermocouple reading trends.
How to use FreeSimulators
Every simulator follows the same pattern: open, adjust, learn or share.
01
Find a simulator
Browse by category or scan the featured picks below. Over 50 tools are available with no account required.
- Filter by subject on the tools page
- Try the featured picks on this page
02
Adjust the inputs
Every simulator has real-time controls. Move sliders, enter values, and watch the result update instantly.
Most simulators encode your settings in the URL so you can share or bookmark any setup.
03
Share or save your result
Copy a link, download a snapshot, or share directly to social platforms — all from inside the simulator.
URL-based sharing means your friend sees the exact same state you configured.
Pick a simulatorFrequently asked questions
Common questions about using FreeSimulators.
Are all simulators really free?
Yes. Every simulator on FreeSimulators is free to use with no sign-up and no paywall.
Do I need to install anything?
No. All simulators run entirely in your browser. No app, no plugin, no install required.
Can I share my simulator result?
Yes. Most simulators encode your settings in the URL — just copy and share the link. Some also offer image downloads and social share buttons.
Are the simulators accurate?
Science and finance simulators use real formulas and are designed for learning and estimation. They are not a substitute for professional advice.
How many simulators are there?
Over 50 simulators are available, covering physics, chemistry, finance, education, and life tools. New ones are added regularly.
Ready to explore?
Browse all 90+ free simulators in one place.
No sign-up. No install. Just open and start.
All simulators are free and work in any modern browser.