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Top Open Source Secure Document Sharing Tools in 2026

A curated collection of the 4 best free and open-source Secure Document Sharing tools in 2026. Compare features, GitHub stars, tech stacks, and self-hosted software.

  • Papermark

    Open-source DocSend alternative with analytics

    Stars
    8,977
    Last commit
    11d ago
    License
    Open Source

  • Sync-in

    Secure, open-source platform for file storage, sharing, and collaboration. Host your data on your own infrastructure with full control and transparency.

    Stars
    1,701
    Last commit
    1mo ago
    License
    AGPL-3.0

  • Seafile

    Self-hosted file sync and share with AI-powered organization

    Stars
    15,174
    Last commit
    11d ago
    License
    Open Source

  • Papra

    Open-source document archiving and organization platform

    Stars
    5,249
    Last commit
    13d ago
    License
    AGPL-3.0
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Showing 4 of 4 open-source tools