claude-obsidian
Focus: pkm, ai and notes. Shares obsidian and claude code with Obsidian Second Brain. Rated 4.8 (Obsidian Second Brain: 4.7).
AI ToolFreemacOS, Windows
4.8Visit
AI Tool
Obsidian Second Brain
Persistent memory for Claude Code and six other CLI agents, stored as plain markdown in your Obsidian vault.
Rating
4.7 / 5
Pricing
Free
Difficulty
Intermediate
Works on
macOS, Windows, Linux
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
What is Obsidian Second Brain?
Obsidian Second Brain gives AI coding agents a durable memory that lives inside your Obsidian vault as plain markdown files. It ships 45 commands covering hybrid semantic search, self-rewriting notes, key-less web research and scheduled agents that maintain the vault, so you stop re-explaining your projects, decisions and people every session.
Third-party open-source projects. We are not affiliated with their authors; repositories are provided as-is by their maintainers. Review each project's license, code and security before installing. See our Disclaimer.
Pros: what Obsidian Second Brain does well
- Memory persists across sessions, so agents remember your projects and decisions
- Everything stays in plain markdown you own inside Obsidian
- Works with Claude Code and six other CLI agents
Cons: where it falls short
- Requires an Obsidian vault and some setup
- Best suited to people already using CLI agents heavily
- Advanced features have a learning curve
Who Obsidian Second Brain is for
Obsidian users and developers who want their AI agents to remember context across sessions.
Who can skip it
People who do not use Obsidian or CLI coding agents.
Obsidian Second Brain alternatives
Not sold on Obsidian Second Brain? These do a similar job, and each card says what it has in common.
Copilot for Obsidian
Focus: ai, agents and notes. Shares obsidian and claude code with Obsidian Second Brain. Freemium (Obsidian Second Brain: Free). Rated 4.5 (Obsidian Second Brain: 4.7).
OtherFree planCross-Platform
4.5Visit
Reor
Focus: AI, PKM and Notes. Shares Semantic Search and Markdown with Obsidian Second Brain. A desktop app, not an AI tool. Rated 4.5 (Obsidian Second Brain: 4.7).
Desktop AppFreemacOS, Windows
4.5Visit
Smart Connections
Focus: related notes, local ai and linking. Shares obsidian and semantic search with Obsidian Second Brain. Freemium (Obsidian Second Brain: Free). Rated 4.5 (Obsidian Second Brain: 4.7).
OtherFree planCross-Platform
4.5Visit
obsidian-mind
Focus: ai memory and agents. Shares obsidian and claude code with Obsidian Second Brain. Rated 4.4 (Obsidian Second Brain: 4.7).
AI ToolFreemacOS, Windows
4.4Visit
Operon
Focus: tasks and productivity. Shares obsidian and ai agents with Obsidian Second Brain. Rated 4.4 (Obsidian Second Brain: 4.7).
AI ToolFreemacOS, Windows
4.4Visit
Free alternatives to Obsidian Second Brain
Want to spend nothing? These free picks cover similar ground.
OSK System
Focus: mcp and agent memory. Shares obsidian and markdown with Obsidian Second Brain. Rated 4.3 (Obsidian Second Brain: 4.7).
AI ToolFreeCross-Platform
4.3Visit
Kipi System
Focus: ai memory, knowledge base and agents. Shares claude code and markdown with Obsidian Second Brain. A framework, not an AI tool. Rated 4.5 (Obsidian Second Brain: 4.7).
FrameworkFreemacOS, Windows
4.5Visit
myPKA
Focus: pkm and icor. Shares markdown and ai agents with Obsidian Second Brain. A template, not an AI tool. Rated 4.4 (Obsidian Second Brain: 4.7).
TemplateFreeCross-Platform
4.4Visit
Opendray
Focus: self-hosted, codex and gateway. Shares ai agents and claude code with Obsidian Second Brain. Adds Web. Rated 4.3 (Obsidian Second Brain: 4.7).
AI ToolFreeWeb, Cross-Platform
4.3Visit
Story Skills
Focus: writing, storytelling and codex. Shares ai agents and claude code with Obsidian Second Brain. Rated 4.2 (Obsidian Second Brain: 4.7).
AI ToolFreeCross-Platform
4.2Visit
Khoj
Focus: ai, search and self-hosted. Shares second brain and open source with Obsidian Second Brain. Adds Web. Rated 4.5 (Obsidian Second Brain: 4.7).
AI ToolFreeWeb, macOS
4.5Visit
Obsidian Second Brain is a Best Productivity Resources Awards: September 2026 winner
Picked by our published rubric from the resources added in September 2026. Makers can add this badge to their site or README; it links back to this page.
<a href="https://bestproductivityresources.com/resources/obsidian-second-brain" target="_blank" rel="noopener" title="Obsidian Second Brain: Best Productivity Resources Award, September 2026"><img src="https://bestproductivityresources.com/badges/awards/2026-09/obsidian-second-brain.svg" alt="Obsidian Second Brain: Best Productivity Resources Award, September 2026" width="280" height="60" /></a>Are you the maker of Obsidian Second Brain?Get a free Featured badge for your site, a share image and ready-to-paste posts. No sign-up.
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