Random distributions

Generate samples from common distributions, visualize histograms, and sanity-check randomness.

Everything runs in your browser; nothing is uploaded. Share URLs contain settings only (no generated results).

Secure mode uses CSPRNG. Seeded mode is for reproducibility, not secrecy.

Choose a tool

Pick a sampler, diagnose randomness, or explore stochastic processes.

Samplers

Generate samples from common distributions and export results.

Open Distribution sampler

Open Dirichlet distribution generator

Open Truncated normal generator

Open Beta distribution generator

Open Weibull distribution generator

Open Triangular distribution generator

Diagnostics & randomness

Check bias, visualize null distributions, and review randomness quickly.

Open Randomness tests

Open Shuffle bias comparison

Open Permutation test

Stochastic processes

Simulate random walks and Markov chains to see distributions evolve.

Open Stochastic process visualizer

Quick start

1) Need samples? Start with Distribution sampler for common distributions.
2) Checking randomness? Use Randomness tests or Shuffle bias comparison.
3) Exploring processes? Visualize random walks and Markov chains.

Guides & next steps

Explore probability and simulation topics, or return to the full Random tools hub.

Open Probability & simulation guide

Open Random & lotteries guide

Back to Random tools