Zen
Zen is a self-hosted, single-binary notes app that stores markdown notes in SQLite with tag-based organization, BM25 full-text search, and an optional MCP server for AI agent integration with note operations.
Best When
You want a dead-simple, privacy-first self-hosted notes app with markdown support and full-text search, deployable as a single binary without external database dependencies.
Avoid When
You need multi-user collaboration, rich block-based editing, or integrations with third-party productivity tools.
Use Cases
- • Self-hosting a lightweight personal notes app without cloud dependencies or subscriptions
- • Markdown-based note-taking with tag organization and full-text search for private knowledge management
- • Enabling AI agents to read, create, and search personal notes via MCP integration
- • Running a minimal-resource notes server on a home server or VPS
Not For
- • Teams needing collaborative or multi-user note-taking with real-time sync
- • Users who need rich media embeds, databases, or spreadsheet views (Notion-style)
- • Deployments requiring commercial support or uptime SLAs
Alternatives
Full Evaluation Report
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Package Brief
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Score Monitoring
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Scores are editorial opinions as of 2026-03-01.