The open source coding agent.

"The mother of all demo apps" — Exemplary fullstack Medium.com clone powered by React, Angular, Node, Django, and many more

Apache ECharts is a powerful, interactive charting and data visualization library for browser

The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.

very good whiteboard infinite canvas SDK

The swiss army knife of lossless video/audio editing

Screenshots with JavaScript

A modified web browser that helps in responsive web development. A web developer's must have dev-tool.

📚 The definitive guide to TypeScript and possibly the best TypeScript book 📖. Free and Open Source 🌹

Simple responsive charts

Functional programming in TypeScript

A modern JavaScript utility library that's 2-3 times faster and up to 97% smaller—a major upgrade to lodash.

CLI for generating, building, and releasing oclif CLIs. Built by Salesforce.

List any node_modules 📦 dir in your system and how heavy they are. You can then select which ones you want to erase to free up space 🧹

shadcn/ui, but for Svelte. ✨

💡 Use the right package manager

Build ultra fast, tiny, and cross-platform desktop apps with Typescript.

IndexedDB, but with promises

🐒 Normalize browsers' default style

Type-Safe Errors for JS & TypeScript

JSON Schema Type Builder with Static Type Resolution for TypeScript

Diff & patch JavaScript objects

2D JavaScript Physics Engine

Simplenote for Web, Windows, and Linux

Generate Google Slides from markdown

Open-source, local-first apps that share a single folder of plain text and SQLite.

ScriptCat, a browser extension that can execute userscript; 脚本猫，一个可以执行用户脚本的浏览器扩展

A tiny (~650 B) & modern library for keybindings.

A zero-config, fast and small (~3kB) virtual list (and grid) component for React, Vue, Solid and Svelte.