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Box alternatives · File Storage

Open-source alternatives to Box

Box is not described as open source on its own site. 5 of the 16 other file storage and sync services in this directory are open source, according to their own sites.

Box has a free plan. Paid plans start at $5 per user / month, billed annually (minimum 3 users). All of them are free or have a free plan.

5 tools · Listings checked up to Oct 5, 2026 · Where the facts come from

How each one differs from Box

  1. Nextcloud

    Open source, self-hosted file sync and collaboration platform

    • Nextcloud starts at 71.29€ per user / year, excl. VAT (from 100 users). Box starts at $5 per user / month, billed annually (minimum 3 users).
    • Only Nextcloud lists a Linux app.
    • Nextcloud is open source and self-hostable, according to its own site.
    • Nextcloud also covers video calls.
    Nextcloud vs BoxNextcloud pricing and details

  2. Filen

    End-to-end encrypted cloud storage from Germany with open source apps

    • Filen starts at €11.99 per year for 100 GiB, or €1.99 per month for 200 GiB. Box starts at $5 per user / month, billed annually (minimum 3 users).
    • Only Filen lists a Linux app.
    • Filen is open source and end-to-end encrypted, according to its own site.
    • Filen also covers notes.
    Filen pricing and details

  3. Proton Drive

    End-to-end encrypted cloud storage from the maker of Proton Mail

    • Proton Drive starts at $3.99 per month, billed yearly. Box starts at $5 per user / month, billed annually (minimum 3 users).
    • Proton Drive is open source and end-to-end encrypted, according to its own site.
    • Proton Drive also covers documents and spreadsheets.
    • Box also covers workflow automation.
    Proton Drive pricing and details

  4. Syncthing

    Free, open source file sync directly between your own devices

    • Syncthing is free. Box starts at $5 per user / month, billed annually (minimum 3 users).
    • Only Syncthing lists a Linux app.
    • Only Box lists a web app.
    • Only Box lists iOS and Android apps.
    Syncthing pricing and details

  5. Internxt

    Open source, zero-knowledge cloud storage with lifetime plans

    • Internxt starts at $11.99 per month, billed annually (list price). Box starts at $5 per user / month, billed annually (minimum 3 users).
    • Only Internxt lists a Linux app.
    • Internxt is open source and end-to-end encrypted, according to its own site.
    • Internxt can be bought with a one-time purchase.
    Internxt pricing and details

Common questions

Is there an open-source alternative to Box?

Yes. Nextcloud, Filen, Proton Drive, Syncthing and Internxt are open source, according to their own sites.

Is Box open source?

Box is not described as open source on its own site. The listing was checked on Oct 5, 2026 against the pages it cites.

When was this checked?

Every listing on this page was checked on Oct 5, 2026, against the pages it cites. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Box: the alternatives its listing names first, then the tools that share the most features with it.