Atomic is an open-source, AI-native knowledge base that transforms freeform notes into a semantically-connected knowledge graph. Users can self-host, run a desktop app, or sync across devices, leveraging features like semantic search, wiki synthesis, and agentic chat. Designed for privacy and extensibility, it's ideal for knowledge workers seeking local-first, AI-augmented note organization.
Atomic App sits in PulseGate's Knowledge base & wikis category. It focuses on organizing and retrieving personal notes and knowledge with semantic search and AI-powered synthesis, all while retaining local control. It is built as an open-source project for knowledge workers. Atomic App is open source under the MIT license. The product ships for the web, macOS, and iOS, and it can be self-hosted.
Atomic App first shipped in 2025. Development happens publicly on GitHub with 1.6k stars and 562 commits in the last 90 days. PulseGate's similarity index finds few close equivalents — Atomic App occupies a relatively distinct niche. Key capabilities include semantic search, wiki synthesis, and agentic chat. It exposes integrations via an MCP server and a public API.
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