Tools & Utilities Directory

Browse fast, client-side browser utilities designed for maximum privacy and zero latency.

All (156) Social Media Mockups (20) Card Generators (6) Date & Time Calculators (13) Financial Calculators (14) Fitness & Health Calculators (12) Math & Grade Calculators (8) Conversion & Measurement (11) Tech & Developer (12) Lifestyle & Everyday (8) Security & Privacy (6) Fun & Creative Generators (7) Writing & Productivity (11) File & Document (10) Image (13) Color Palette (5)
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Math & Grade Calculators
Percentage Calculator

Solve all common percentage questions: What is X% of Y, X is what % of Y, percentage increase/decrease, and percentage difference.

Math & Grade Calculators
Fraction Calculator

Add, subtract, multiply, and divide fractions, mixed numbers, and improper fractions with step-by-step simplification.

Math & Grade Calculators
GPA Calculator

Calculate high school and college grade point averages on standard 4.0 weighted and unweighted scales.

Math & Grade Calculators
Final Grade Calculator

Determine the exact score you need on your final exam to achieve your desired overall class grade.

Math & Grade Calculators
Scientific Calculator

Perform advanced scientific calculations: trigonometric functions (sin, cos, tan), logarithms, square roots, powers, factorials, and constants.

Math & Grade Calculators
Standard Deviation Calculator

Calculate sample standard deviation, population standard deviation, variance, mean, and count from a set of numbers.

Math & Grade Calculators
Random Number Generator

Generate cryptographically strong pseudo-random numbers, integers, ranges, and lottery picks with duplicate filtering.

Math & Grade Calculators
Quadratic Formula Calculator

Solve quadratic equations of the form ax² + bx + c = 0 with real roots, complex roots, and discriminant analysis.