Dropbox System Design

Dropbox can be designed as a distributed file storage and synchronization system where users upload files from multiple devices. The actual file contents are stored in scalable object storage, while file metadata (names, permissions, versions, and folder structure) is maintained in a separate metadata database. Files are split into chunks and identified using hashes to support deduplication, resumable uploads, and efficient transfers. A synchronization service detects changes and notifies connected devices so files stay consistent across platforms. To ensure scalability and reliability, the system uses replication, caching, load balancing, and versioning for data recovery. Welcome to my channel, where I explore the world of Software System Design, Distributed Systems, Cloud Architecture, Scalability, Microservices, APIs, Databases, and Engineering Leadership. Whether you're preparing for system design interviews, advancing your software engineering career, or simply passionate about building large-scale systems, you'll find practical insights, real-world examples, and easy-to-understand explanations here. If you find these videos valuable, please subscribe to support the channel and stay updated with new content. Your likes, comments, and shares help more people discover these resources and learn from them as well. Looking for personalized mentorship, career guidance, system design coaching, or engineering leadership advice? Check out my mentorship page: https://mentorcruise.com/mentor/zahra... You can also connect with me on LinkedIn: linkedin.com/in/zyousefi Thank you for being part of this learning community!