why-did-you-render by Welldone Software monkey patches React to notify you about potentially avoidable re-renders. (Works with React Native as well.)

Debug your Jest tests. Effortlessly.🛠🖼

List of ngrok/Cloudflare Tunnel alternatives and other tunneling software and services. Focus on self-hosting.

A React app to interactively visualize JavaScript's Event Loop

Modern HTTP benchmarking tool

A desktop application for downloading Udemy Courses

A Udemy downloader that can download courses, with DRM support.

Validate and visualize dependencies. Your rules. JavaScript, TypeScript, CoffeeScript. ES6, CommonJS, AMD.