OrbitDB
OrbitDB is a serverless, distributed, peer-to-peer database built on top of IPFS (InterPlanetary File System). It enables decentralized applications (dApps) to store and share data directly between users without relying on central servers, using CRDTs (Conflict-Free Replicated Data Types) for consistency. It supports various data structures like key-value stores, logs, and feeds, making it ideal for collaborative and censorship-resistant applications.
Developers should learn OrbitDB when building decentralized applications that require data persistence and synchronization across a peer-to-peer network, such as social platforms, collaborative tools, or IoT systems. It's particularly useful in scenarios where avoiding central points of failure, ensuring data ownership, and enabling offline-first functionality are priorities, as it leverages IPFS for content-addressed storage and automatic data replication.