ChatLab

ChatLab is an open source desktop application designed to help users analyze and better understand their personal chat histories through structured data exploration and AI-assisted insights. It enables users to import chat exports from multiple messaging platforms and transform them into a unified data model for consistent analysis. By combining a flexible SQL engine with AI agents, the tool allows users to query, summarize, and explore conversation patterns in a more interactive and intelligent way. ChatLab emphasizes a local-first approach, meaning all chat data is processed and stored on the user’s device rather than being uploaded to external servers. It supports large-scale datasets through streaming parsing and multi-worker processing, allowing it to handle millions of messages efficiently. ChatLab also includes visualization features that present trends, activity patterns, and interaction metrics in a clear and accessible format.