Open source. Open possibilities.

LEANN is a lightweight vector database designed for personal RAG applications, reducing storage requirements by up to 97% through graph-based selective recomputation.

RxDB is a local-first, reactive NoSQL database for JavaScript apps, running in browsers, Node.js, React Native, Electron and more. It provides a swappable storage layer and a sync engine that replicates with your existing backend via HTTP, GraphQL, CouchDB, WebSocket and other adapters.

TalaDB is an embedded vector and document database designed for on-device AI, providing a unified TypeScript API across Browser, Node.js, and React Native.

Tally is a free, local-first shared‑expense splitter for trips, dinners, and group activities. It supports equal or exact splits, receipt photo entry, live collaboration via capability‑protected links, multilingual UI, and privacy‑first analytics—all without requiring an account.