freeCodeCamp.org's open-source codebase and curriculum. Learn to code for free.

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

JavaScript API for Chrome and Firefox

Virtual whiteboard for sketching hand-drawn like diagrams

Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.

Presentation Slides for Developers

This project is deprecated. Check my new project ChatHub:

阿里妈妈前端团队出品的开源接口管理工具RAP第二代

Davinci is a DVsaaS (Data Visualization as a Service) Platform

Modern database IDE for your dev & data workflows. Supports MySQL, PostgreSQL & MongoDB.