Mock Data

FakerTypeScript

Generate massive amounts of fake (but realistic) data for testing and development in Node.js and browsers.

chance.jsJavaScript

A minimalist random generator library for JavaScript that produces random numbers, strings, names, addresses, and more.

mimesisPython

A fast Python library for generating fake data in multiple languages with extensible providers and schema-based generation.

JSON Schema + FakerJavaScript

Generate realistic fake JSON data from JSON Schema definitions with zero production dependencies.

falsoTypeScript

Generate massive amounts of fake data in the browser and NodeJS with tree-shakable, fully-typed functions.

ffakerRuby

A Ruby library for generating fake data, originally forked from Faker with an expanded API and unique value generation.