What this tool does
Random Number Generator creates random integers, decimals, unique sequences, dice rolls, and Gaussian distributions with configurable ranges, formats, and statistics.
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🎲 Random Number / Sequence Generator
Generate random integers, decimals, unique sequences, dice rolls, and Gaussian distributions with statistics and seed support.
Randomness checks
Validates numeric bounds, count limits, integer-only ranges, and unique-sample feasibility. Browser random values are suitable for everyday sampling, not cryptography or regulated draws. Seeded runs are reproducible for fixtures; leave seed blank for fresh samples.
Why it is useful
It helps developers, testers, educators, and tabletop gamers generate random samples, test data, dice rolls, and statistical simulations.
How it works
Uniform mode uses the shared deterministic random core. Gaussian and dice modes extend that with browser-side distributions and seed support.
Distributions
Uniform generates flat-random values between min and max. Gaussian produces a bell-curve. Dice rolls N dice of S sides plus a modifier.
Best input
Choose the distribution that matches your use case. Use a seed when you need reproducible fixtures.
Privacy note
Random number generation happens locally in your browser.
Important limitation
Browser random values are suitable for everyday sampling, not cryptography or regulated draws.
Quick answers
What's Gaussian distribution?
A bell curve where most values cluster around the mean with spread controlled by standard deviation.
Is this cryptographically secure?
No. For security-sensitive applications, use a dedicated CSPRNG.
Common Use Cases
Generate test data for applications
Create random integers or decimals within a specific range for populating test databases.
Roll dice for tabletop games
Use dice mode to roll RPG dice like 3d6 or 1d20.
Simulate natural variation
Use Gaussian distribution for scores or measurement noise.
Pick random samples
Generate unique random integers to sample items without repetition.
Random ID & Token Toolkit workflow
Move between UUIDs, ULIDs, NanoIDs, passwords, hashes, random numbers, usernames, and placeholder names while keeping randomness, secret-handling, and collision caveats visible.