Horde Groupware 5 re-freshed.

For the most recent release of Horde Groupware and Horde Groupware Webmail Edition, the Horde team and community have focused on improving the interface and usability of this widely deployed collaboration and communication system. A fresh design on top of the most flexible web groupware solution available, and further improved support for mobile devices make this the best Horde Groupware ever.

  • Community

    Community

    Wondering what Horde is? Curious how to use one of Horde's many more advanced features? Learn more about Horde and its powerful applications with Frequently Asked Questions, Screenshots and more.

  • Development

    Development

    As the most flexible groupware platform in the world, Horde makes an ideal place to create your own custom applications. Learn more about our feature-rich collection of web development libraries and how to get started.

  • Services

    Services

    More than just software: Our team of trusted professionals helps you build large installations or custom applications. Learn how our experience and technology delivers the most flexible platform to realize your grand ideas.

Latest News

Planet Horde

  • Another wicked game in the engine room
    It was the early 2000s when the web was still glowing and deforming, freshly spit out from a volcano at CERN a mere decade earlier, taking its time cooling down and gelling into...
  • Worms infested my code base and I am fighting back
    The sabberworm/php-css-parser used to be bundled with the horde/css-parser library. Supposedly the one is a shield before the other, separating the code base from this particula...
  • Time, it needs time
    As I am writing this, bug reports from users are coming in on last night’s updates to Turba Addressbook. In Turba we first rolled out our new way of date handling and upgr...
  • Intermission: H6 Beta Update Week
    I hesitated the whole last week to release part 4 of our series on Horde 6 architecture decisions since there was a lot going on. The good news is you don’t have another l...
  • Web: Why “No Frontend Framework” is the Right Framework for Horde 6
    Part 3 of 4: Architectural Evolution in Horde 6 I really did not want to build another frontend framework. Or adopt one for that matter. When jQuery Mobile became untenable (see...
  • JWT Authentication: Building a Hybrid Model That Actually Works
    Part 2 of 4: Architectural Evolution in Horde 6 In part 1 of the evolution series: The jQuery Problem I discussed frontend concerns – How to move off a dead mobile-only fr...
  • The jQuery Mobile Problem: Why Horde 6 Had to Move On
    Part 1 of 4: Architectural Evolution in Horde 6 Turns out you can’t ship a stable release while depending on a framework that was deprecated five years ago. I sort of knew...
  • Horde’s new Two-Factor API
    New Horde 6 feature: The horde/horde base app’s next release supports two factor logins.Dmitry Petrov is working to release a new One-Time Password module which integrates...
  • Sunsetting the Maintaina Horde Fork
    A few years back I started a downstream fork of Horde to develop features I needed for foss and customer deployments without upstream dependencies. It went successful, was a gre...
  • A wicked problem from the past
    In the last few evenings there was great despair. Trying to solve one problem would reveal yet another one. As a result, I hesitated to release some of the changes immediately....