Balance chemical equations instantly. Supports parentheses, polyatomic ions, and complex redox reactions. Shows step-by-step atom verification.
Last updated: March 1, 2026
Balance chemical equations instantly. Supports parentheses, polyatomic ions, and complex redox reactions. Shows step-by-step atom verification. This tool runs in-browser for fast results without account setup.
Yes. Chemical Equation Balancer is completely free with no signup required, no limits, and no hidden charges. It runs entirely in your browser.
Your data is processed entirely in your browser and never sent to any server. Nothing is stored or shared — your privacy is guaranteed.
It can balance any chemical equation including simple synthesis/decomposition, combustion, single/double replacement, and complex redox reactions. It handles parentheses, polyatomic ions, and hydrates.
It uses matrix-based Gaussian elimination with rational arithmetic to find the smallest whole-number coefficients that conserve every element on both sides of the equation.
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Use ->, =>, =, or → as the arrow. Use + between compounds.