Best Alternatives to brain.md
Memory & ContextΒ·β
13Β·AGPL-3.0
Local-first markdown notes with a first-class MCP server. 16 tools + 2 resources for Claude Code, Claude Desktop, Cursor and any MCP agent. Per-folder permissions, semantic RAG via LanceDB, single Bun binary. AGPL.
#Local-first#Second Brain#Markdown Editor#AI Agent Integration#RAG#Semantic Search#Obsidian Compatible#MCP
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Best Alternatives to brain.md
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Side-by-Side Comparison
| Field | brain.md | letta | DesktopCommanderMCP |  nginx-ui |
|---|---|---|---|---|
| Category | Memory & Context | Memory & Context | Memory & Context | Memory & Context |
| Stars | β 13 | β 23.0k | β 6.1k | β 11.2k |
| License | AGPL-3.0 | Apache-2.0 | MIT | AGPL-3.0 |
| Updated | 1d ago | 2w ago | 2d ago | 2d ago |
| Open Source | Yes | Yes | Yes | Yes |
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Compare brain.md With Others
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FAQ
What is brain.md?
brain.md is a local-first markdown editor and knowledge base designed to serve as a 'second brain' for both humans and AI agents. It integrates built-in semantic search (RAG) using local WASM ONNX embeddings or external LLM APIs, and provides a Model Context Protocol (MCP) server for seamless interaction with AI clients, all while keeping data in plain .md files.
What is the best alternative to brain.md?
letta is the top-rated alternative to brain.md in the Memory & Context category.
Is there a free alternative to brain.md?
letta is a free, open-source alternative.
Is brain.md open source?
Yes, brain.md is open source on GitHub, licensed under AGPL-3.0.