Software Alternatives, Accelerators & Startups

Horde

Horde Groupware is a free, enterprise ready, browser based collaboration suite.

Horde Alternatives

The best Horde alternatives based on verified products, community votes, reviews and other factors.
Latest update:

  1. 53

    Web-based IMAP email client

    Open Source

    /roundcube-alternatives
  2. 51

    Email at its best, new from Basecamp.

    paid Free Trial $99.0 / Annually

    /hey-alternatives
  3. VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

    Try for free paid Free Trial $4.99 / Monthly (User)

    Try for free
  4. 49

    Mailo is an email client where you can send and receive emails to and from anyone with an email address.

    /mailo-alternatives
  5. 48

    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.

    Open Source

    /mailpile-alternatives
  6. 50

    Disposable email address application.

    /instaddr-alternatives
  7. 57

    RainLoop is a web based email client.

    Open Source

    /rainloop-alternatives
  8. 50

    All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail.

    Open Source

    /cypht-alternatives
  9. 46

    Soverin is the honest email service that doesn’t sell your data.

    /soverin-alternatives
  10. 53

    Save time and scale faster with accessible, secure, and reliable cloud email services. A proven multitenant email solution for telcos and service providers.

    freemium $1.3 / Monthly (Per mailbox)

    /atmail-alternatives
  11. 41

    Webmail service. Powered by RainLoop.

    /teknik-mail-alternatives
  12. 37

    Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

    /zimbra-alternatives
  13. 29

    A fully fledged, free email server solution, an open source project (GPL v2).

    Open Source

    /iredmail-alternatives
  14. 40

    Self-hosted server for the ProtonMail client.

    /neutronmail-alternatives
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