Uzi Tools - Free Online Calculators and Utilities
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14 Tools Available

Free Math & Statistics Calculators

Free online math calculators and visualizers for algebra, geometry, probability, and calculus. Graph functions, solve equations, and explore statistics with step-by-step explanations. All processing in your browser—no signup, no data stored.

Graph Plotter

Draw 2D graphs of math functions and visualize curves on a coordinate plane.

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Quadratic Equation Solver

Solve ax² + bx + c = 0 and see real or complex roots with step-by-step breakdown.

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Linear Regression Calculator

Fit a best-fit line to (x, y) data and see slope, intercept, and correlation.

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Bayes' Theorem Calculator

Compute posterior probabilities from prior and likelihood values using Bayes' theorem.

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Permutation & Combination Calculator

Compute nPr and nCr for counting arrangements and selections in probability problems.

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Prime Factorization Calculator

Factor any positive integer into its prime factors and see the product form.

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Fraction Simplifier & Mixed Number Converter

Simplify fractions, convert between improper fractions and mixed numbers, and see step-by-step work.

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LCM & GCD Calculator

Compute the least common multiple and greatest common divisor for two or more integers with explanation.

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System of Linear Equations Solver

Solve 2x2 or 3x3 systems of linear equations and see step-by-step elimination or substitution.

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Matrix Calculator (2x2 & 3x3)

Compute determinants, inverses, and basic operations for 2x2 and 3x3 matrices.

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Function Transformation Visualizer

See how shifts, stretches, and reflections transform the graph of a base function.

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Riemann Sum & Area Under Curve Visualizer

Visualize left, right, and midpoint Riemann sums to approximate area under a curve.

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Sequence & Series Calculator (Arithmetic/Geometric)

Compute nth terms, partial sums, and formulas for arithmetic and geometric sequences.

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Distance, Midpoint & Slope Calculator

Find the distance, midpoint, and slope of the line between two points with formula breakdowns.

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Frequently Asked Questions