math-random is an isomorphic, drop-in replacement for `Math.random` that uses cryptographically secure random number generation, where available

Seedable Math.random compatible pseudorandom number generator

This is a polyfill for `window.crypto.getRandomValues()`. In place of `Math.random()` it uses the [Mersenne Twister pseudorandom number generator](https://github.com/boo1ean/mersenne-twister) seeded by `Math.random()`.

Math.random() as a deterministic jest mock function

Override Math.random

Predict the output of Math.random

Similar to random-bytes-seed but returns a number between 0 and 1, similar to Math.random()

Predict Math.random output in Node, Deno, Bun, Chrome, Firefox, and Safari

A replacement for Math.random() that is tiny, fast, seedable, and has good statistical properties.

ESLint rules enforcing glissade's determinism contract in scene code: no wall-clock reads, no unseeded Math.random, no async in the evaluate() path.

Access to a secure random source in a browser. `Math.random` is not acceptable for cryptographic operations. This module exports a consistent interface for modern browsers.

Storybook addon that seeds Math.random and crypto for deterministic stories, snapshots, and visual regression tests.

A better Math.random()

Mock `Math.random` when run unit test cases with jest, output deterministic random number.

ESLint rule: flag non-deterministic calls (Date.now, Math.random, …) inside a @Workflow run

Simple Version 4 (random) UUID generator for browser, without any dependencies. Calls `Math.random()` twice to generate a single UUID.

Math.random - but with AI

A cryptographically strong random number generator. Designed to be a drop-in replacement for Math.random. Can be used with Node or in a browser.

Node.js native addon (C++) for high-performance Math.random() prediction

Generate random id on Math.random()