CloudShare is a three-tier web application architecture combining a client layer of web browsers and mobile devices, an Apache/PHP application server handling user authentication and file uploads, and a MySQL database with Users, Files, and Admin tables. Data flows from clients through the Internet to the Web Server, which processes requests via the PHP application, manages user sessions, and coordinates file storage in a server upload folder. This architecture demonstrates core file-sharing patterns: user registration, secure file uploads, share link generation, and role-based access control via admin tables. Fork this diagram on Diagrams.so to customize database schemas, add caching layers, or extend with CDN and backup strategies. Consider adding encryption for stored files and implementing rate limiting on upload endpoints for production deployments.