Real-time collaborative code editors have become essential tools for modern software development, enabling multiple users to simultaneously write, edit, and debug code from different locations. Traditional single-user editors lack synchronization capabilities, making teamwork less efficient and prone to version conflicts. Existing collaborative systems often face challenges such as latency issues, conflict resolution, and inconsistent document states when multiple users edit simultaneously. To address these limitations, this study presents a real-time collaborative code editor that enables seamless multi-user coding using WebSocket-based bidirectional communication. The system ensures instant synchronization of code changes across all connected clients, providing a smooth and responsive collaborative experience. It employs Operational Transformation (OT) / Conflict-free Replicated Data Types (CRDTs) techniques to manage concurrent edits and maintain consistency of the shared document. The frontend is designed with an interactive code editing interface, while the backend handles session management, user synchronization, and real-time data exchange.