The Random Number Generator produces random integers or decimals within a range you choose. Generate one or many at once, and optionally require all results to be unique. It uses the browser's cryptographically secure random source.
Truly random numbers
Set a minimum and maximum, choose integers or decimals, and pick how many numbers to generate. The no-duplicates option is great for raffles, lotteries and random sampling. Unlike basic generators, this tool uses crypto.getRandomValues for high-quality randomness.
Options
- Any range of integers or decimals
- Generate up to 1,000 numbers at once
- Optional unique (no-duplicate) results
Related searches
Recommended Math & Finance Calculators tools
Explore more free online tools related to Random Number Generator.
Fraction Calculator
Add, subtract, multiply or divide two fractions and get the result simplified, plus decimal and mixed-number forms.
Scientific Notation Converter
Convert numbers to and from scientific notation, engineering notation, E-notation and standard form instantly.
Standard Calculator
A fast, free online standard calculator for everyday arithmetic — add, subtract, multiply, divide, percentages and more, with keyboard support.
Scientific Calculator
A full scientific calculator with trigonometry, logarithms, powers, roots, factorials and constants — supports degrees and radians.
Percentage Calculator
Calculate percentages three ways — find a percent of a number, what percent one number is of another, and percentage increase or decrease.
Age Calculator
Calculate exact age in years, months and days from a date of birth, plus total months, weeks, days and a countdown to the next birthday.