smart-second-brain
A free, open-source Obsidian plugin that makes your vault smarter: better search, an interactive knowledge graph, and an AI assistant that knows your notes.
What is smart-second-brain?
A free, open-source Obsidian plugin that makes your vault smarter: better search, an interactive knowledge graph, and an AI assistant that knows your notes.
Overview of smart-second-brain
What it is
Smart Second Brain is a free, open-source Obsidian plugin that enhances a user's vault with improved search, an interactive knowledge graph, and an AI assistant that can access the user's notes. It runs on desktop and mobile. Search and the graph work immediately without requiring an AI provider; connecting one unlocks the full agent.
Key features
- Search that combines keyword matching with meaning to find notes based on intent rather than exact typing.
- Smart Graph that automatically groups notes into topics derived from links, tags, and content, with no manual maintenance.
- Agents that can read and write notes, generate live charts and dashboards as widgets, and include skills, memory, MCP, and integrations with other plugins.
Use cases
Users can find notes more effectively using semantic search, visualize the structure of their vault through an auto-grouped knowledge graph, and interact with an AI assistant that understands their notes to help with tasks such as summarizing, connecting ideas, or creating content.
Getting started
Install Smart Second Brain from Obsidian's community plugins and enable it. Search and the Smart Graph work immediately with no configuration. To unlock semantic search and topic detection, add an embedding model. To enable the agent, add an AI provider. See the getting started guide on the project's website.
License and pricing
License: MIT. The plugin is free and open-source.
Based on the project's public README and repository metadata.
