s2b-dev / 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.
Why this job: says: obsidian, second brain; topics: obsidian, obsidian-plugin

What it does
- Search that combines keyword matching with meaning, so you find the note you were thinking of rather than the one you typed (how it works)
- Smart Graph that works out what your vault is about: notes grouped into topics from your links, your tags, and what you wrote, with nothing to maintain (how it works)
- Agents that read and write your notes, draw charts and dashboards live from them as widgets, with skills, memory, MCP, and integrations with your other plugins
Get started
No single install command. Read the steps in the README (opens in new tab)
- Maintenance
- Active
- Last commit 42 days ago
- Stars
- 1,346
- +6 this week
- Licence
- MIT
- Allows business use
- Downloads for
- None listed
- No release files
- Latest version
- 2.3.0
- Released 42 days ago
- Built with
- TypeScript
- 75% of the code
Is it looked after?
- Contributors
- 3
- Last 90 days
- Issues
- 86% closed
- 35 still open
- Pull requests
- 238 merged
- 9 waiting
- Releases
- 40
- 11 in the last year
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More: languages, topics and project record
Languages
- TypeScript 75%
- Svelte 24%
- CSS 1%
- JavaScript <1%
Topics
- ai
- obsidian-md
- obsidian-plugin
- rag
- local-first
- obsidian
- semantic-search
- ai-agents
Project record
- JobNotes and knowledge
- StatusFeatured
- Commits1,073
- Forks121
- Watching11
- Stars in 28 days+34
- CreatedOct 2, 2023
- First seen by usNov 7, 2026
- CheckedNov 9, 2026
