OrbitDB is described as 'Serverless, distributed, peer-to-peer database. OrbitDB uses IPFS as its data storage and IPFS Pubsub to automatically sync databases with peers. It's an eventually consistent database that uses CRDTs for conflict-free database merges making OrbitDB an excellent' and is an app in the file sharing category. There are more than 100 alternatives to OrbitDB for a variety of platforms, including Linux, Windows, Mac, Web-based and Self-Hosted apps. The best OrbitDB alternative is SQLite, which is both free and Open Source. Other great apps like OrbitDB are PostgreSQL, MySQL Community Edition, MongoDB and MariaDB.