Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

📚 Freely available programming books

Generate Microsoft Word DOCX files in pure client-side JavaScript. Try in Chrome

An enterprise-class UI design language and React UI library

Modular and customizable Material Design UI components for the web

🦍 A configurable component library for web built on React.

Animation engine for explanatory math videos

A V2Ray client for Android, support Xray core and v2fly core