NoteDiscovery

Website

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 screenshot

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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