Do you need generate fake names for demo data? Use this!

MCP server for generating placeholder data — lorem ipsum, fake names, emails, addresses, phone numbers, company names. Zero external deps.

Fake JavaScript timers

Add fake test data easily to your Artillery test scripts.

A package for generating fake names, emails, and more.

Generate massive amounts of fake contextual data

Fake IndexedDB: a pure JS in-memory implementation of the IndexedDB API

TypeScript definitions for @sinonjs/fake-timers

This package contains fake data for development purposes. Which includes fake names, emails, phone numbers, addresses, etc.

An in-memory implementation of web extension APIs for testing. Supports all test frameworks (Vitest, Jest, etc)

Injects a fake HTTP request/response into a node HTTP server

A simple list of possible Typed Array names.

Generates mock data from zod schema. Powered by @faker-js/faker and randexp.js

Does this JS environment support the `name` property on functions?

A package to seed your database using Drizzle ORM

Give me a string and I'll tell you if it's a valid npm package name

Lightweight debugging utility for Node.js and the browser

The set of canonical Unicode property names supported in ECMAScript RegExp property escapes.

A fake template literal tag to trick syntax highlighters, linters and formatters into action.

You want Ethereum's [merkle-patricia tree](https://github.com/wanderer/merkle-patricia-tree), but you don't care about the stateRoot. Fake it! And reap the optimization benefits.