JavaScript implementation of the xoshiro deterministic family of PRNGs (pseudorandom number generators). Written in pure JS, and works on node.js as well as browsers.

SafeRNG is a JavaScript library for generating provably fair numbers in online gambling and betting applications. It provides a set of functions for generating integers, floats, and dice rolls, as well as utility functions for combining seeds and hashing

prng-xoshiro

JavaScript implementation of the xoshiro deterministic family of PRNGs (pseudorandom number generators). Written in pure JS, and works on node.js as well as browsers.

randombytes-pure

JS-only implementation of randomBytes, intended for use with React Native and other limited runtimes

slot-machine

A slot machine.

salve-dom

A library for validating DOM trees according to a Relax NG schema.

@stdlib/random-array-tools-unary

Constructor for creating arrays filled with pseudorandom values drawn from a unary PRNG.

react-native-secure-randombytes

randomBytes for react-native

@stdlib/random-array-tools-unary-factory

Create a factory function for generating pseudorandom values drawn from a unary PRNG.

@stdlib/random-iter-randu

Create an iterator for generating uniformly distributed pseudorandom numbers between 0 and 1.

@stdlib/random-array-bernoulli

Create an array containing pseudorandom numbers drawn from a Bernoulli distribution.

@stdlib/random-iter-uniform

Create an iterator for generating pseudorandom numbers drawn from a continuous uniform distribution.

@stdlib/random-array-normal

Create an array containing pseudorandom numbers drawn from a normal distribution.

squirrel-noise

A typescript implementation of Squirrel Eiserloh's noise based RNG explained at GDC

bias-random

Generates biased random numbers with a customizable bias level, direction, and range

@react-native-oh-tpl/react-native-randombytes

randomBytes for react-native

@trap_stevo/rng

Unleash beautifully deterministic randomness with a seedable generator crafted for developers, artists, game designers, and procedural creators. Whether forging alien worlds, generating dynamic narratives, or craving control over chaos, this tool delivers

salve-annos

A fork with support for documentation of Salve, a Javascript library which implements a validator able to validate an XML document on the basis of a subset of RelaxNG.

random-extra

Seedable random number generator supporting many common distributions.

extended-random

A small collection of functions aiming at extending the possibilities of your RNG

@randomizer.ai/realtime-client

Listen for Randomizer's VRF result previews in real-time

@lazy-random/df-uniform

@stdlib/random-iter-beta

Create an iterator for generating pseudorandom numbers drawn from a beta distribution.

@arrng/contracts

arrng solidity contracts package

@stdlib/random-strided-normal

Fill a strided array with pseudorandom numbers drawn from a normal distribution.

take-chance

A JavaScript library to help with various tasks involving randomness.

secure-rng

Generating secure random numbers.

insomnia-plugin-randomnumber

Generate random numbers inside the Insomnia REST client

@lazy-random/df-array

@wedxml/core

Wed is a schema-aware editor for XML documents.

@lazy-random/cross-crypto

pcg-random

Implementation of the PCG random number generator for JavaScript

spadille

Verifiable/deterministic fair tickets generation for lotteries, raffles and gambling games.

@lazy-random/array-algorithm

@lazy-random/generators-math-random2

rot-esm

A roguelike toolkit in JavaScript

area51

Experimental prototypes of alien things built in JavaScript. The bits may end up living in a different package.

@lazy-random/generators-crypto

@lazy-random/distributions

@lazy-random/rng-abstract-core

randtools

Generate random numbers with different distributions

@lazy-random/df-uuid

@lazy-random/df-char-id

@react-native-module/randombytes

implementation of randomBytes for React Native

@lazy-random/rng-factory

@react-native-module/get-random-values

implementation of getRandomValues for React Native

randomcryp

A cryptographically secure, feature rich, zero dependency and browser friendly random number generator library.

@lazy-random/df-algorithm

@lazy-random/util-probabilities

@lazy-num/sum

@lazy-random/util-distributions

@lazy-random/generators-xor128

@lazy-random/df-item-by-weight

@lazy-random/df-poisson

@lazy-random/df-sum

@lazy-random/generators-seedrandom

zipfian-integer

Get an integer between min and max with skew towards either

@modern-dev/jsbn

The jsbn library is a fast, portable implementation of large-number math in pure JavaScript, enabling public-key crypto and other applications on desktop and mobile browsers.

wed

Wed is a schema-aware editor for XML documents.

@wedxml/common

The common infrastructure for code using wed editors.

sodium-uuid

Generate v4 UUIDs using libsodium's RNG

hash-maker

A collection of hash and number generators for Node or Browser

react-native-openpgp

React-Native OpenPGP is an OpenPGP.js implementation made to work under React-Native.

@lazy-random/random-core

arbitrary

Efficient Reversible Number Generator

@wedxml/trivial-grammar-loader

A trivial grammar loader that just loads grammars.

shuffle-obj-arrays

Shuffles the arrays of the given object (map) using @shuffle-array

@wedxml/runtime-indexeddb-handler

A handler for the indexeddb:// scheme.

@stdlib/random-iter-lognormal

Create an iterator for generating pseudorandom numbers drawn from a lognormal distribution.

pluggedin-random-number-generator-mcp

A state-of-the-art cryptographically secure random number generator MCP server

@wedxml/null-saver

A saver for wed that does nothing.

@wedxml/build

A builder for producing custom wed bundles.

@wedxml/base-saver

The a base class for savers providing some boilerplate.

@stdlib/random-iter-triangular

Create an iterator for generating pseudorandom numbers drawn from a triangular distribution.

well-rng

Lightweight, fast implementation of the WELL-1024a PRNG

@stdlib/random-iter-normal

Create an iterator for generating pseudorandom numbers drawn from a normal distribution.

@paintswap/vrf

Paintswap VRF

@lazy-num/parse-number-string

@wedxml/db-saver

A saver for wed that uses a DB backend to save.

@stdlib/random-iter-discrete-uniform

Create an iterator for generating pseudorandom numbers drawn from a discrete uniform distribution.

@orao-network/aptos-vrf

ORAO Verifiable Random Function for Aptos blockchain

@stdlib/random-streams-pareto-type1

Create a readable stream for generating pseudorandom numbers drawn from a Pareto (Type I) distribution.

num-in-delta

check actual number is expected number ± delta

@cwrc/salve-leafwriter

A fork with support for documentation of Salve, a Javascript library which implements a validator able to validate an XML document on the basis of a subset of RelaxNG.

monkerware

MonkerWare helpers

@cwrc/salve-dom-leafwriter

A library for validating DOM trees according to a Relax NG schema.

@roninjjj/randomize

Easily include random number generation in your projects. Whether if it's a 2 item 50/50, or a 20 item lootbox, all you need is a simple object!

@stdlib/random-strided-minstd

Fill a strided array with pseudorandom numbers generated using a linear congruential pseudorandom number generator (LCG).

rando-js

Randomization utilities for NodeJS in es6

@orao-network/fuel-vrf

ORAO VRF SDK Verifiable Random Function for the Fuel Network

@stdlib/random-iter-pareto-type1

Create an iterator for generating pseudorandom numbers drawn from a Pareto (Type I) distribution.

fdrandom

Fast deterministic random methods. Includes Uniform, Gaussian, gaming distributions, shuffles and antisort

@stdlib/random-array-pareto-type1

Create an array containing pseudorandom numbers drawn from a Pareto (Type I) distribution.

@stdlib/random-streams-box-muller-cli

Create a readable stream for generating pseudorandom numbers drawn from a standard normal distribution using the Box-Muller transform.

@stdlib/random-streams-minstd

Create a readable stream for a linear congruential pseudorandom number generator (LCG) based on Park and Miller.

@stdlib/random-streams-box-muller

Create a readable stream for generating pseudorandom numbers drawn from a standard normal distribution using the Box-Muller transform.

@orao-network/solana-vrf-cb

ORAO Verifiable Random Function with Callback for Solana.

@stdlib/random-iter-box-muller

Create an iterator for generating pseudorandom numbers drawn from a standard normal distribution using the Box-Muller transform.

@stdlib/random-iter-mt19937

Create an iterator for a 32-bit Mersenne Twister pseudorandom number generator.

@stdlib/random-array-f

Create an array containing pseudorandom numbers drawn from an F distribution.

kleros-interaction-2

Smart contracts interacting with Kleros.

@lazy-random/generators-xorshift128

wrap xorshift128+ to random number generator

@stdlib/random-array-lognormal

Create an array containing pseudorandom numbers drawn from a lognormal distribution.

@stdlib/random-array-minstd-shuffle

Create an array containing pseudorandom numbers generated using a linear congruential pseudorandom number generator (LCG) whose output is shuffled.

@stdlib/random-iter-f

Create an iterator for generating pseudorandom numbers drawn from an F distribution.

yurandom

Deterministic seed-based random generator using Xoroshiro128+. Useful for avatars, testing, procedural content, and more.

use-rng

A deterministic random number generator library with React hook and standalone implementations

@stdlib/random-streams-pareto-type1-cli

Create a readable stream for generating pseudorandom numbers drawn from a Pareto (Type I) distribution.

@stdlib/random-streams-mt19937

Create a readable stream for a 32-bit Mersenne Twister pseudorandom number generator.

@stdlib/random-strided-minstd-shuffle

Fill a strided array with pseudorandom numbers generated using a linear congruential pseudorandom number generator (LCG) whose output is shuffled.

rng-randomnumbergenerator

A simple package that generates a random number with 2 functions

portable-rng

Simple, node/browser compatible Alea RNG generator from http://baagoe.com/en/RandomMusings/javascript/

random-entities

Randomization utilities in Node or the browser. About as random as you can get natively.

@mizdra/gen3-poke-data

第三世代ポケモン情報クラス

pyrand

Python random module ported to JavaScript

@stdlib/random-streams-hypergeometric

Create a readable stream for generating pseudorandom numbers drawn from a hypergeometric distribution.

@stdlib/random-strided-tools-unary-factory

Create a factory function for filling strided arrays with pseudorandom values drawn from a unary PRNG.

insomnia-plugin-bingorandomnumber

bingo Generate random numbers inside the Insomnia REST client

qranode

A wrapper for ANUs Quantum RNG API

@manticorp/gamerng

The most powerful RNG in the world for game use - flexible, performant, seedable, serializable, reliable.

@stdlib/random-array-cauchy

Create an array containing pseudorandom numbers drawn from a Cauchy distribution.

xoshiro128

A fast, seedable, non-cryptographic random number generator.

uniform-integer

Get an integer between a min and max, bring your own random number generator.

@stdlib/random-streams-lognormal

Create a readable stream for generating pseudorandom numbers drawn from a lognormal distribution.

@stdlib/random-streams-f

Create a readable stream for generating pseudorandom numbers drawn from an F distribution.

@stdlib/random-array-negative-binomial

Create an array containing pseudorandom numbers drawn from a negative binomial distribution.

random-esm

Seedable random number generator supporting many common distributions.

@stdlib/random-streams-binomial

Create a readable stream for generating pseudorandom numbers drawn from a binomial distribution.

dnd-generator

A system for generating random D&D 5E information

@gouvernathor/rng

A deterministic and reseedable random number generator, resembling (but not with the same API as) Python's Random.

@stdlib/random-streams-improved-ziggurat

Create a readable stream for generating pseudorandom numbers drawn from a standard normal distribution using the Improved Ziggurat algorithm.

procedural-rng

A collection of procedural random number generators (prng) written in TypeScript

@stdlib/random-array-chisquare

Create an array containing pseudorandom numbers drawn from a chi-square distribution.

@stdlib/random-streams-laplace

Create a readable stream for generating pseudorandom numbers drawn from a Laplace (double exponential) distribution.

@stdlib/random-strided-lognormal

Fill a strided array with pseudorandom numbers drawn from a lognormal distribution.

@stdlib/random-streams-minstd-shuffle

Create a readable stream for a linear congruential pseudorandom number generator (LCG) whose output is shuffled.

@wedxml/client-api

The API for code using wed editors ("client code").

random-cjs

Seedable random number generator supporting many common distributions.

@stdlib/random-iter-improved-ziggurat

Create an iterator for generating pseudorandom numbers drawn from a standard normal distribution using the Improved Ziggurat algorithm.

@stdlib/random-strided-chisquare

Fill a strided array with pseudorandom numbers drawn from a chi-square distribution.

tspersistentprng

Persistent CMWC4096 PRNG implementation for TS

@stdlib/random-strided-mt19937

Fill a strided array with pseudorandom numbers generated using a 32-bit Mersenne Twister pseudorandom number generator.

@stdlib/random-streams-kumaraswamy

Create a readable stream for generating pseudorandom numbers drawn from a Kumaraswamy's double bounded distribution.

@stdlib/random-iter-chisquare

Create an iterator for generating pseudorandom numbers drawn from a chi-square distribution.

@stdlib/random-array-binomial

Create an array containing pseudorandom numbers drawn from a binomial distribution.

brng

Biased random number generator

@stdlib/random-streams-randi

Create a readable stream for generating pseudorandom numbers having integer values.

@stdlib/random-streams-cosine

Create a readable stream for generating pseudorandom numbers drawn from a raised cosine distribution.

mtrand-node

A node module to expose a C++ implementation of the Mersenne Twister Random Number Generator

@stdlib/random-streams-f-cli

Create a readable stream for generating pseudorandom numbers drawn from an F distribution.

@stdlib/random-streams-invgamma

Create a readable stream for generating pseudorandom numbers drawn from an inverse gamma distribution.

@stdlib/random-iter-randn

Create an iterator for generating pseudorandom numbers drawn from a standard normal distribution.

insomnia-plugin-randomcreditcard

Generate random creditcard numbers inside the Insomnia REST client

@mizdra/gen3-jpn-pokedex

日本語ポケモン図鑑クラス

@stdlib/random-iter-negative-binomial

Create an iterator for generating pseudorandom numbers drawn from a negative binomial distribution.

dicekit-fp

insomnia-plugin-randomphone

Generate a random phone number for Insomnia REST Client.

@mizdra/poke-nature

ポケモン性格クラス

weighted-rng

A weighted RNG for nodejs

@stdlib/random-streams-improved-ziggurat-cli

Create a readable stream for generating pseudorandom numbers drawn from a standard normal distribution using the Improved Ziggurat algorithm.

mersenne-twister-serializable

A serializable Mersenne Twister

@stdlib/random-streams-minstd-shuffle-cli

Create a readable stream for a linear congruential pseudorandom number generator (LCG) whose output is shuffled.

@stdlib/random-array-randu

Create an array containing uniformly distributed pseudorandom numbers between 0 and 1.

@stdlib/random-streams-levy

Create a readable stream for generating pseudorandom numbers drawn from a Lévy distribution.

randm

Easy to use JS random generator for generating random numbers, dice rolls, dates etc... Small footprint (<1Kb gzipped) library with Typescript support that can be used in a browser or node environment.

@wedxml/ajax-saver

A saver for wed that uses an AJAX-based protocol to save.

wed-demo

A demo for the wed editor.

@stdlib/random-streams-cauchy

Create a readable stream for generating pseudorandom numbers drawn from a Cauchy distribution.

squirrel-noise-5

Noise based RNG tool

@stdlib/random-streams-uniform-cli

Create a readable stream for generating pseudorandom numbers drawn from a uniform distribution.

deadbeef-rand

A simple, seed-able pseudo-random number generator (PRNG).

@stdlib/random-streams-chi

Create a readable stream for generating pseudorandom numbers drawn from a chi distribution.

@2bad/dice

Utility library to compute dice rolls

@stdlib/random-streams-t

Create a readable stream for generating pseudorandom numbers drawn from a Student's t distribution.

@stdlib/random-array-mt19937

Create an array containing pseudorandom numbers generated using a 32-bit Mersenne Twister pseudorandom number generator.

@stdlib/random-streams-beta

Create a readable stream for generating pseudorandom numbers drawn from a beta distribution.

lcg-random

(Predictable) LCG Random Number Generator

@repraze/rnd

Simple randomizer library

@stdlib/random-array-tools-ternary-factory

Create a factory function for generating pseudorandom values drawn from a ternary PRNG.

@stdlib/random-streams-chisquare

Create a readable stream for generating pseudorandom numbers drawn from a chi-square distribution.

@stdlib/random-iter-minstd-shuffle

Create an iterator for a linear congruential pseudorandom number generator (LCG) whose output is shuffled.

rng-ts

Random Number Generator in Typescript

@stdlib/random-iter-weibull

Create an iterator for generating pseudorandom numbers drawn from a Weibull distribution.

node-java-random

Complete implementation of java.util.random in C++ and Node.js

@stdlib/random-streams-arcsine

Create a readable stream for generating pseudorandom numbers drawn from an arcsine distribution.

@stdlib/random-streams-randn

Create a readable stream for generating pseudorandom numbers drawn from a standard normal distribution.

@hicaru/chacharand.js

Pure JavaScript implementation of ChaCha8/12/20 random number generator

prdrng

Pseudo random distribution rng calculator

@stdlib/random-streams-cauchy-cli

Create a readable stream for generating pseudorandom numbers drawn from a Cauchy distribution.

@stdlib/random-streams-betaprime

Create a readable stream for generating pseudorandom numbers drawn from a beta prime distribution.

jittertrng

Bindings for Jitterentropy Library - A Hardware RNG based on CPU timing jitter

@stdlib/random-streams-uniform

Create a readable stream for generating pseudorandom numbers drawn from a uniform distribution.

@stdlib/random-streams-randu

Create a readable stream for generating uniformly distributed pseudorandom numbers between 0 and 1.

@stdlib/random-array-erlang

Create an array containing pseudorandom numbers drawn from an Erlang distribution.

react-native-randombytes-nodeify

randombytes nodeify for react-native, react-native-randombytes wrapper

arc4rand

a seedable random number generator

insomnia-mika-randomkey

Generate random key inside the Insomnia REST client

react-generator-component

rng cli: cli para proyectos con react, react y storybook, creador de componentes

@stdlib/random-streams

Pseudorandom number generator streams.

pokemon-rng

Pokemon RNG library

@stdlib/random-strided-rayleigh

Fill a strided array with pseudorandom numbers drawn from a Rayleigh distribution.

@stdlib/random-streams-betaprime-cli

Create a readable stream for generating pseudorandom numbers drawn from a beta prime distribution.

@stdlib/random-iter-t

Create an iterator for generating pseudorandom numbers drawn from a Student's t distribution.

@bluelovers/xorshift

Random number generator using xorshift128+