Flow : Adds static typing to JavaScript to improve developer productivity and code quality.
Snowpack : Snowpack is a better build tool for modern web apps. Snowpack leverages ESM imports in your application to remove all unnecessary bundling work from y...
Nx : Nx is a smart and extensible build framework to help you architect, test, and build at any scale — integrating seamlessly with modern technologies and...
grunt : Grunt is a task-based command line build tool for JavaScript projects
Enzyme : Enzyme is a JavaScript Testing utility for React that makes it easier to assert, manipulate, and traverse your React Components' output.
A toolkit for React, Preact & Inferno apps, React libraries and other npm modules for the web, with no configuration (until you need it)