Fastest random ID and random string generation for Node.js

Predict the output of Math.random

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

for adding, subtracting, and indexing discontinuous ranges of numbers

A tiny (130B to 205B) and fast utility to randomize unique IDs of fixed length

A tiny (230B) and fast UUID (v4) generator for Node and the browser

Get a pretty output of the original, minified, gzipped size of a string or buffer: 130 B → 91 B → 53 B (gzip)

Simple JavaScript expression evaluator

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

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()`.

Tide predictor

No description provided.

A mathematically correct random number generator library for JavaScript.

OpenCode plugin that predicts your next message and shows it as ghost text — role-plays as you using your conversation history. /pred-on to enable.

Seedable Math.random compatible pseudorandom number generator

Generate one or more common English words

A JavaScript library for generating human-like mouse movement data points.

task manager for promise

[](https://discord.gg/poimandres)

Mock a canvas in your jest tests.