Random number, coin flip, dice roll, and password generators. Browse our free random tools below — all calculators are instant, accurate, and require no sign-up.
Coin Flip Simulator — Flip a virtual coin one or multiple times. Track heads vs tails counts and percentages. Free online coin toss simulator.
Dice Roll Simulator — Roll virtual dice with 4, 6, 8, 10, 12, or 20 sides. Roll multiple dice and see totals, averages, and distributions. Free online dice roller.
Password Generator — Generate strong, random passwords with custom length and character sets. Include uppercase, lowercase, numbers, and symbols. Free online password generator.
Random Number Generator — Generate random numbers within a custom range. Set min, max, count, and choose integers or decimals. Free online random number generator.
UUID Generator (v4) — Generate random UUID v4 identifiers online. Create unique 128-bit identifiers for databases, APIs, and software development instantly.