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Science Tools

Free online science tools for chemistry, physics, and more. Chemical equation balancer, logic gate simulator, resistor decoder — all run in your browser with complete privacy.

Science

2 tools

Chemical Equation Balancer
Balance chemical equations by entering reactants and products in standard notation — uses Gaussian elimination for accurate integer coefficients. Free online chemical equation balancer.
Logic Gate Simulator
Simulate AND, OR, NOT, NAND, NOR, XOR, XNOR, and BUFFER logic gates with real-time output, truth tables, and Boolean expressions — up to 8 gates simultaneously. Free online logic gate simulator.