Open Source Obsidian Alternatives

The best open source alternative to Obsidian is Logseq. If that doesn't suit you, our users have ranked more than 100 alternatives to Obsidian and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Obsidian are Zettlr, Joplin, Notesnook and Standard Notes.

filter to find the best alternatives

Obsidian alternatives are mainly Note-taking Tools, but if you're looking for Todo List Managers or Task Management Tools you can filter on that. Other popular filters include Open Source, Windows, Self-Hosted, Linux, Note-taking, Linux + Open Source and Windows + Open Source. These are just examples - use the filter bar below to find more specific alternatives to Obsidian.
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Alternatives list

  1. Silverbullet icon
     17 likes

    Silver Bullet is an extensible, open source, personal knowledge management system. Indeed, that’s fancy talk for “a note-taking app with links.” However, Silver Bullet goes a bit beyond just that.

    76 Silverbullet alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
     
  2. nb icon
     8 likes

    CLI and local web plain text note-taking, bookmarking, and archiving with linking, tagging, filtering, search, Git versioning & syncing, Pandoc conversion, + more, in a single portable script.

    12 nb alternatives

    Cost / License

    Platforms

    • Mac
    • Linux
    • Homebrew
     
  3. Org-roam icon
     20 likes

    Org-roam is a Roam replica built around the all-powerful Org-mode.

    Cost / License

    Platforms

    • Mac
    • Windows
    • Linux
    • GNU Emacs
     
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    1
    Org-roam vs Obsidian Comments
    Guest
    Positive
    2

    Comparably to Obsidian, it's based on the same philosophy as Roam, and your notes are not on a cloud. It diverges by the fact that this app is completely free and open source, and it runs on Emacs.

    Review by a new / low-activity user.
    • Org-roam is Free and Open SourceObsidian is Freemium and Proprietary
  4. Quillpad icon
     17 likes

    Quillpad is a fork of an original app called Quillnote. The development stopped on the original app and PR backlogs were not cleared up. The community showed much interest in the app for continued development and so this fork was created.

    Cost / License

    Platforms

    • Android
    • F-Droid
     
  5. OpenNotas icon
     6 likes

    OpenNotas is an open-source note-taking application, cross-platform based on PWA, focusing on security and device synchronization.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
     
  6. HelixNotes icon
     4 likes

    HelixNotes is a local markdown note-taking app built with Rust, Tauri 2.0, and SvelteKit. Your notes are standard .md files on your filesystem - sync with whatever you want or nothing at all.

    77 HelixNotes alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
     
  7. Eidos icon
     4 likes

    An extensible framework for Personal Data Management.

    Cost / License

    Platforms

    • Online
    • Windows
    • Mac
    • Linux
     
  8. Fluster icon
     5 likes

    The ultimate note-taking app for students & academics, featuring AI-powered RAG, vector databases, bibliography management, and seamless integration with your academic workflow.

    31 Fluster alternatives

    Cost / License

    • Free
    • Open Source

    Platforms

    • Windows
    • Mac
    • Linux
     
  9. Quentier icon
     2 likes

    You can also use Quentier for local notes without any connection to Evernote and synchronization.

    Cost / License

    Application type

    Platforms

    • Linux
     
  10. Darkwrite icon
     4 likes

    The eye-candy note taking and to-do application for all desktops.

    Cost / License

    Platforms

    • Windows
    • Mac
    • Linux
     
  11. Print(Notes) icon
     5 likes

    A cross-platform markdown notes app inspired by Google Keep and Obsidian, made with Flutter.

    Cost / License

    Platforms

    • Linux
    • Android
    • iPhone
    • F-Droid
     
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