Violentmonkey provides userscripts support for browsers. It works on browsers with WebExtensions support.

🔌 Sample Figma plugins.

Client-side HTML-to-PDF rendering using pure JS.

MutationObserver for CSS. Get notified when the computed value of a CSS property changes.

Generate a modern Web project with Go and Angular, React, or Vue in seconds 🎲

ECMAScript/JavaScript engine in pure Go

Monorepo for the new version of ESLint

Anthropic's educational courses

🤿 React hooks, except using deep comparison on the inputs, not reference equality

useEffect hook which takes a comparison function instead of compare using reference equality

🐋 It's react's useEffect hook, except using deep comparison on the inputs, not reference equality

Multithreaded DOM is possible.

Essential building-blocks for functional & safe TypeScript code

Find newer versions of package dependencies than what your package.json allows

Utility for creating HTTP and WebSocket servers for testing.

TypeScript notebook for rapid prototyping

Extremely powerful Inversion of Control (IoC) container for Node.JS

A Node-RED node to read and write local PGlite databases. PGlite is a WASM build of Postgres.

An onboarding wizard flow / product tour for Next.js animated by framer motion

Audiolize React performance

🕵️‍♂️ All-in-one OSINT tool for analysing any website

JavaScript Library for Timezone Lookup by Location

Decodes complex FormData into a JavaScript object

A set of react hooks to work with the fetch API and gracefully parse & deal with HTTP errors

Simple logging library with zero dependencies for Deno, Node.js, Bun, browsers, and edge functions

A tool for finding memory leaks in web apps

A manifest of JS modules and their more modern/active replacements