NoteDiscovery
Self-hosted Markdown knowledge base and note-taking app
2.8k stars 234 forks last commit first released MIT
Actively maintained
Last commit 25 Aug 2026.

NoteDiscovery is a lightweight, self-hosted knowledge base and note-taking application that stores content as plain Markdown files in folders. It focuses on fast navigation and discovery of notes with a modern web interface, while keeping data under your control.
Key Features
- Markdown editor with live preview and code syntax highlighting
- Wikilinks for connecting notes and an interactive graph view
- YAML frontmatter metadata with tag-based organization and filtering
- Templates with dynamic placeholders for creating reusable note formats
- Mermaid diagram rendering and LaTeX/MathJax equation support
- Favorites, outline (table of contents) panel, and keyboard shortcuts
- Plugin system for extending functionality
- Optional built-in password protection and a REST API
- Responsive UI with Progressive Web App (PWA) support
- Export notes as standalone HTML files
Use Cases
- Personal knowledge base or “second brain” built on local Markdown files
- Developer documentation and technical notes with code blocks, diagrams, and math
- Small team internal wiki with simple sharing and optional authentication
NoteDiscovery is a practical option for users who want a fast, Markdown-first knowledge base with linking and visualization features, without relying on proprietary storage formats. Its file-based approach also makes backups and migrations straightforward.
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