node-mocks-http
Mock 'http' objects for testing Express, Next.js and Koa routing functions
ts-log
Abstract logger TypeScript interface with a dummy logger that does nothing, useful for libraries.
jabber
Simple random word, paragraph, lorem ipsum, dummy text generator, fake name, email.
lorem-ipsum
Generates passages of lorem ipsum text suitable for use as placeholder copy in web pages, graphics, and more. Works in the browser, NodeJS, and React Native.
fake-tag
A fake template literal tag to trick syntax highlighters, linters and formatters into action.