Z

    Zettlr

    A professional, open-source Markdown editor designed for academic writing and research management.

    SESweden
    Headquarters
    πŸ‡ΈπŸ‡ͺSweden
    Data Hosting
    EU-based
    Structure
    Independent
    Compliance
    β€”

    Zettlr key facts

    Last updated
    Legal entity
    Hendrik Erz (Individual Developer)
    Headquarters
    Sweden (SE)
    Ownership
    Independent
    Infrastructure
    Self-hosted (Local Desktop App)
    Open source
    No
    US Cloud Act exposure
    Low (no US parent)
    Replaces
    Microsoft Word

    About Zettlr

    Zettlr is a free, open-source Markdown editor tailored for researchers, journalists, and academics. It emphasizes a 'local-first' philosophy, ensuring that users have complete control over their data by storing all files locally on their own devices. The application is built to support complex writing projects through features like Zettelkasten-style note-taking and advanced readability metrics. The project is positioned as a political alternative to 'platform capitalism,' advocating for digital sovereignty and the 'extended mind' theory. Because it does not utilize a cloud backend or collect user data, it inherently minimizes privacy risks associated with data-extracting proprietary software. It is actively maintained by the community and its lead developer, Hendrik Erz.

    Alternative to

    Hosting & Security

    Infrastructure

    Self-hosted (Local Desktop App)

    Key Features

    Readability analysis tools (Dale-Chall, Gunning-Fog, Coleman-Liau, ARI)
    Fast text previews
    Zettelkasten support
    Language-agnostic word length analysis
    Local digital note storage
    Markdown-based writing environment

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