The privacy-first personal AI operating system for total data sovereignty and automated life management.
Cozy (specifically the Cozy Cloud ecosystem) is a sophisticated personal AI and data management platform designed to disrupt the centralized data silos of Big Tech. Architecturally, it functions as a personal operating system that sits atop a CouchDB-based storage layer, utilizing a unique system of 'Konnectors' to aggregate data from banks, health providers, and utilities. In 2026, Cozy has evolved into a leading 'Personal AI' platform by integrating local LLM processing (via WASM or local node execution) and vector databases directly into the user's private instance. This allows for 'Zero-Knowledge AI'—where the model learns from your sensitive emails, financial records, and health data without that data ever leaving your controlled environment. Its market position is unique as a bridge between the niche self-hosting community and the mass market's growing demand for privacy. The platform's extensible architecture supports a decentralized app store where third-party developers can deploy 'Cozy Apps' that interact with the user's unified data schema under strict permission-based protocols.
A Node.js-based micro-service framework that scrapes or API-fetches data into a unified CouchDB schema.
Verified feedback from the global deployment network.
Post queries, share implementation strategies, and help other users.
Uses machine learning classifiers to automatically categorize and reconcile bank transactions without cloud-side processing.
RAG (Retrieval-Augmented Generation) implementation that runs locally, indexing every PDF and email for semantic retrieval.
End-to-end encrypted synchronization between the cloud instance and mobile/desktop clients.
Aggregates FHIR data and fitness metrics into a unified longitudinal record with AI-driven trend detection.
Fine-grained ACLs (Access Control Lists) that allow you to share specific documents with third parties via secure expiring links.
Computer vision and NLP applied to uploaded images to distinguish between receipts, identity cards, and photos.
Scattered receipts and bank statements across multiple apps and paper files.
Registry Updated:2/7/2026
Lack of unified view for medical records and wearable data.
Searching for a specific attachment buried in years of emails or cloud storage.