Random Number Generator
Generate random numbers, pick from ranges, roll dice, and create random sequences with cryptographic randomness
Cryptographic Randomness
All random numbers are generated using the Web Crypto API (crypto.getRandomValues()), providing cryptographically secure randomness suitable for security-sensitive applications.
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Percentage Calculator
Calculate percentages, tip amounts, and percentage changes with precision
Scientific Calculator
Advanced multi-functional calculator with trigonometric, logarithmic, and exponential functions
Statistics Calculator
Calculate mean, median, mode, standard deviation, and variance for sets of data
Fraction Calculator
Add, subtract, multiply, and divide fractions, and simplify them to lowest terms
Age Calculator
Calculate your exact age in years, months, weeks, days, and even minutes
GPA & Grade Calculator
Track your academic performance with weighted GPA and semester grade estimates
IP Subnet Calculator
Compute network ranges, broadcast addresses, and CIDR masks for IPv4 networking
BMI & BMR Calculator
Calculate your Body Mass Index (BMI) and Basal Metabolic Rate (BMR) with health insights