Turso

Turso is a database company built around SQLite. It maintains libSQL, an open-source fork of SQLite that adds features SQLite itself lacks, including a server mode, HTTP access, replication, and embedded replicas that keep a synced local copy of the database next to the application for very low read latency. The team is also building Turso Database, a full rewrite of SQLite in Rust designed for concurrent writes, asynchronous I/O, and running an extremely high number of small databases efficiently, which supports a pattern of giving every user, tenant, or agent its own isolated database rather than sharing one large one. Turso Cloud is the managed offering, providing globally distributed SQLite-compatible databases with instant creation, no idle charges, point-in-time recovery, and built-in vector similarity search for embeddings, which makes it usable as a store for retrieval-augmented generation and other AI workloads, including on-device use. It is aimed at developers building applications on serverless and edge platforms, multi-tenant SaaS products, and AI agents that need many lightweight databases. Turso provides client libraries for popular languages and frameworks, along with a command-line interface for creating databases, managing replicas, and running migrations. It offers a free tier with generous limits and usage-based paid plans, and its libSQL components can be self-hosted at no cost, which keeps the door open for teams that want to migrate off the managed service later.