Generate random numbers, dice rolls, coin flips, and lottery numbers with history tracking
Generate integers, floats, dice rolls, coin flips, and lottery numbers with customizable options.
Roll multiple dice with support for D4, D6, D8, D10, D12, and D20 - perfect for tabletop RPGs.
Keep track of all generated numbers with timestamps and parameters for reference.
Set custom ranges, decimal places, and quantity for exact random number requirements.
Generate unique lottery numbers without duplicates for your favorite games.
Instantly copy generated numbers to clipboard for use in other applications.
Our random number generator uses JavaScript's Math.random() function combined with cryptographic randomness when available (crypto.getRandomValues). It generates pseudorandom numbers within your specified range with uniform distribution.
While no software-based generator produces true randomness (which requires physical entropy sources), our tool uses the best available browser APIs including Web Crypto API for cryptographically strong pseudorandom numbers suitable for most applications including games, simulations, and testing.
Integer mode generates whole numbers only (e.g., 1, 42, 100), while float mode generates decimal numbers (e.g., 3.14159, 42.7, 99.123). In float mode, you can specify the number of decimal places for precision control.
Select 'Dice' mode and choose your dice type (D4, D6, D8, D10, D12, or D20). Specify how many dice to roll, and the tool will generate random results for each die, showing individual values and the total sum - perfect for tabletop RPGs.
Yes! The lottery mode generates unique random numbers within your specified range. For example, you can generate 6 numbers between 1 and 49 for lottery games. The numbers are guaranteed to be unique (no duplicates).
Yes, in integer and float modes, you can specify the quantity of numbers to generate. In dice mode, you can roll multiple dice simultaneously. The lottery mode automatically generates the specified count of unique numbers.