Transform neighborhood book boxes into searchable catalogs with AI-powered photo extraction. Take a photo, get book metadata, and join the world's largest distributed library.
Snap a picture of books in your Little Free Library box
AI extracts titles, authors, genres, and summaries
Your books join a searchable network spanning the world
Single photo to complete book metadata with AI summaries, vector embeddings, and smart enrichment from Google Books & Open Library
Organize private collections, manage wishlists, share with friends, and add personal ratings and notes
Join 150,000+ library boxes worldwide. Mobile-first PWA works offline with enterprise-grade reliability
Search across languages with Spanish, French, and Chinese translations. Break down language barriers globally
Advanced similarity search finds related books using semantic embeddings and intelligent deduplication
Anyone can host a node using our OpenAPI schema standard. Built for distributed, decentralized collaboration
Imagine every Free Little Library box digitally connected. From Portland to Tokyo to Berlin, every neighborhood book box becomes part of a global, searchable catalog.
How nodes connect and share data across the network
Pick your language, implement the OpenAPI spec, run conformance tests, and join the mesh network
Full-featured reference implementation using Node.js/Express backend with PostgreSQL database and Drizzle ORM. React 18 frontend with TailwindCSS.
Lightweight Go implementation using Chi router with HarperDB NoSQL backend. Vue 3 frontend. Single binary deployment.
FastAPI implementation with SQLAlchemy ORM. Perfect for data science integrations and ML-powered book recommendations.
High-performance Actix-web implementation. Ideal for resource-constrained environments like Raspberry Pi.
All implementations must pass the OpenAPI conformance tests before joining the Istio mesh network. This ensures broadcasts work correctly across all nodes.
View API Contracts & Test Suite →150,000+ Free Little Library boxes globally
Transform neighborhood book sharing into searchable networks
Photo-driven cataloging replacing expensive POS systems
Fair compensation for creators
Enable authors and publishers to share work through neighborhood libraries while earning royalties. Incentivize sharing and returning through a sustainable ecosystem.
Join thousands of book lovers building the world's largest distributed library network
Get Started with BetaFree to use • No credit card required • Mobile-friendly