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Open Source Personal Knowledge Management (PKM) Tools using Cargo

A curated collection of the best open source tools for organizing personal information and building knowledge graphs. using Cargo.

AppFlowy

AI workspace for docs, projects, and wikis you control

  • Stars

    77,681

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Open source collaborative workspace combining notes, databases, and AI with full data ownership, offline support, and self-hosting options.

Open Source Alternative to:

Notion

Joplin

Encrypted note-taking that syncs across all your devices

  • Stars

    56,850

  • Last commit

    10 hours ago

  • License

    Unknown
Cross-platform note-taking app with end-to-end encryption, Markdown support, web clipping, and sync via Dropbox, OneDrive, or Joplin Cloud.

Open Source Alternative to:

Obsidian

Blinko

AI-Powered Note Taking App

  • Stars

    11,107

  • Last commit

    2 months ago

  • License

    GPL-3.0
The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.

Open Source Alternative to:

Notion

Silverbullet

Programmable notes with queries, Lua scripting, and wiki links

  • Stars

    Stars growing over the last 30 days6,374

  • Last commit

    2 days ago

  • License

    MIT
A self-hosted, browser-based note-taking system that turns plain Markdown pages into a queryable, scriptable knowledge base you control.

Open Source Alternative to:

Notion

Deta Surf

Browser and notebook combined with local-first AI

  • Stars

    3,610

  • Last commit

    2 months ago

  • License

    Apache-2.0
A browser that doubles as a personal notebook, letting you research, summarize, and take notes on web pages, PDFs, and videos without switching apps.

Open Source Alternative to:

NotebookLM
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