Zero CPU overhead, zero dependency, true event-loop blocking sleep

Fake JavaScript timers

Resolves a promise after a specified delay

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

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

TypeScript definitions for @sinonjs/fake-timers

thread-sleep the runs on multiple versions of node

A collection of small async/await utilities

Add sleep() and usleep() to nodejs

Resolves a promise after a specified delay.

A promise wrapper for `setTimeout`

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

A module for when you just need node to back off for a few milliseconds

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

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

Cacheable Utilities for Caching Libraries

Turns async function into sync via JavaScript wrapper of Node event loop

Lightweight debugging utility for Node.js and the browser

Halt execution for a specific time period

Add fake test data easily to your Artillery test scripts.