21M Notes Alternatives

21M Notes is described as 'Organize your ideas, notes, and to-dos in 21M Notes. Separate them by projects, save prompts, links, and useful info for later—everything in one place' and is an website in the backup & sync category. There are six alternatives to 21M Notes, not only websites but also apps for a variety of platforms, including Mac, Windows, Android, iPhone and iPad apps. The best 21M Notes alternative is Obsidian, which is free. Other great sites and apps similar to 21M Notes are Joplin, Notion, Standard Notes and Zettlr.

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Alternatives list

  1. Obsidian icon

    Obsidian

     1077 likes
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    Privacy-oriented note-taking app for non-linear thinking, blending knowledge graph creation with wiki-style linking. Supports Markdown, end-to-end encryption, and plugins for customization. Offers distraction-free mode, tags, themes, syntax highlighting, and operates offline without tracking.

    157 Obsidian alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Snapcraft
    • Microsoft Edge
    • Google Chrome
    • Flathub
    • Safari
    • Mozilla Firefox
    Obsidian screenshot 1
     

    • Obsidian is the most popular Windows, Android, Mac & iPhone alternative to 21M Notes.

    • Obsidian is the most popular free alternative to 21M Notes.

    • Obsidian is Freemium and Proprietary21M Notes is Free and Proprietary
    • Obsidian is Lightweight and Privacy focused21M Notes is not according to our users
  2. Joplin icon

    Joplin

     861 likes
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    Open source app for managing notes and to-dos with Markdown support. Syncs seamlessly across devices using services like Dropbox and OneDrive. Offers end-to-end encrypted synchronicity, offline access, rich import/export options, and a Web Clipper for browsers.

    103 Joplin alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • AppImageHub
    • Snapcraft
    • Google Chrome
    • Flathub
    • PortableApps.com
    • F-Droid
    • Cloudron
    • Homebrew
    • Chocolatey
    • Termux
    • Mozilla Firefox
    Desktop and mobile apps
     

    • Joplin is the most popular Web-based & Self-Hosted alternative to 21M Notes.

    • Joplin is the most popular Open Source alternative to 21M Notes.

    • Joplin is Freemium and Open Source21M Notes is Free and Proprietary
    • Joplin is Privacy focused, Lightweight and Minimalistic21M Notes is not according to our users
  4. Notion icon

    Notion

     644 likes
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    Enhance team collaboration and content organization with Notion. Experience real-time access, intuitive drag-and-drop functionalities, and visually simple interfaces designed for productivity in managing tasks, notes, and databases effectively. Ideal for teams of every size.

    145 Notion alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
    Notion screenshot 1
     

    • Notion is the most popular SaaS alternative to 21M Notes.

    • Notion is Freemium and Proprietary21M Notes is Free and Proprietary
    • Notion is Customizable21M Notes is not according to our users
  5. Ad
    Screenshot
    Notion icon
    Notion

    Enhance team collaboration and content organization with Notion. Experience real-time access, intuitive drag-and-drop functionalities, and visually simple interfaces designed for productivity in managing tasks, notes, and databas...

    https://www.notion.com
    Learn More
  6. Standard Notes icon

    Standard Notes

     678 likes
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    Secure note-taking app with end-to-end encryption, unlimited syncing across all platforms, offline access, detailed organization through tags, strong passcode and biometric protections, and premium features like encrypted files, themes, web clipper, super note types, and hardware key support.

    112 Standard Notes alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Self-Hosted
    • F-Droid
    Standard Notes screenshot 1
     
  7. Zettlr icon

    Zettlr

     242 likes
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    Unified writing platform offering note-taking, easy citations with Zotero integration, LaTeX/Word templates, snippets, themes, dark modes, code highlighting, multi-language support, and knowledge management with Zettelkasten for seamless writing from notes to books.

    174 Zettlr alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    Zettlr Main Window (dark mode)
     
  8. Microsoft OneNote icon

    Microsoft OneNote

     1138 likes
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    Comprehensive digital notebook offering organizers, shared notes, multi-device syncing, and optical character recognition, plus cloud-based data management for efficient information handling and accessibility.

    133 Microsoft OneNote alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Windows Phone
    • iPad
    • Apple Watch
    • Android Wear
    • Kindle Fire
    Microsoft OneNote screenshot 1
     
6 of 6 21M Notes alternatives