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Open Source ActiveCollab Alternatives

The best open source alternative to ActiveCollab is Redmine. If that doesn't suit you, our users have ranked more than 100 alternatives to ActiveCollab and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to ActiveCollab are Taiga.io, Focalboard, Kanboard and GanttProject.

ActiveCollab alternatives are mainly Project Management Tools but may also be Task Management Tools or Team Collaboration Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of ActiveCollab.
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  • Mac
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  • Online
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  • Self-Hosted

ActiveCollab is equipped with just the right set of features to keep you free from distractions and focused on work, even...

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  1. Redmine icon

    Redmine

    • Online
    • MySQL Community Edition
    • Self-Hosted
    • MariaDB
    • Ruby
    • Microsoft SQL Server
    • Cloudron
    • Ruby on Rails
    • PostgreSQL
    262 alternatives to Redmine 

    Redmine is a flexible project management web application. Written using Ruby on Rails framework, it is cross-platform and cross-database.

     Suggest and vote on features
    Features
    1.  File VersioningRedmine has a version system that lets you view and go back to older versions of the project/file/document.
    2.  Gantt-chartsRedmine allows you to visualize your project plan through a timeline with schedule bars and keep track of the work done.
    3.  Task Time TrackingKeep a record of time spent on a task with Redmine.
    4.  Extensible by Plugins/ExtensionsRedmine can be extended with add-ons, plugins and extensions.
    Issue List
    Spent Time
  2. Taiga.io icon

    Taiga.io

    • Online
    • BSD
    • Self-Hosted
    • Django
    • AngularJS
    • Software as a Service (SaaS)
    • Cloudron
    202 alternatives to Taiga.io 

    Taiga is the easy and intuitive yet powerful agile project management tool for multi-functional teams. Taiga has a best in class Sprint task board, and you can seamlessly migrate to Kanban if needed.

     Suggest and vote on features
    Features
    1.  Scrum BoardsTrack your team's work progress in Taiga.io through individual sprints across different stages of your workflow, using the Scrum methodology.
    2.  Kanban BoardTaiga.io allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
    3.  Support for MarkDownTaiga.io supports MarkDown for document formatting.
    4.  Extensible by Plugins/ExtensionsTaiga.io can be extended with add-ons, plugins and extensions.
    5.  Task Time TrackingKeep a record of time spent on a task with Taiga.io.
    6.  Real time collaborationMultiple users can work together in Taiga.io simultaneously.
    Screenshot
    Screenshot


  3. Focalboard icon

    Focalboard

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    233 alternatives to Focalboard 

    Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.

     Suggest and vote on features
    Features
    1.  Kanban BoardFocalboard allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
    2.  Real time collaborationMultiple users can work together in Focalboard simultaneously.
      Screenshot
      Screenshot
    • Kanboard icon

      Kanboard

      • Online
      • Self-Hosted
      • Cloudron
      188 alternatives to Kanboard 

      Kanboard is a free and open source Kanban project management software.

       Suggest and vote on features
      Features
      1.  Kanban BoardKanboard allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
      2.  Extensible by Plugins/ExtensionsKanboard can be extended with add-ons, plugins and extensions.
      3.  Real time collaborationMultiple users can work together in Kanboard simultaneously.
      4.  Gantt-chartsKanboard allows you to visualize your project plan through a timeline with schedule bars and keep track of the work done.
        Screenshot
        Screenshot
      • GanttProject icon

        GanttProject

        • Mac
        • Windows
        • Linux
        • Linux Mint
        • Ubuntu
        148 alternatives to GanttProject 

        GanttProject is a cross-platform desktop tool for project scheduling and management. It runs on Windows, Linux and MacOSX, it is free and its code is opensource. What can it do?

         Suggest and vote on features
        Features
        1.  Gantt-chartsGanttProject allows you to visualize your project plan through a timeline with schedule bars and keep track of the work done.
        GanttProject application window showing Gantt chart of the sample project
        Resource chart view of the sample project


      • Phabricator icon

        Phabricator

        • Mac
        • Linux
        • Online
        • BSD
        • Self-Hosted
        • PHP
        • Cloudron
        83 alternatives to Phabricator 

        Phabricator is a collection of open source web applications that help software companies build better software.

         Suggest and vote on features
        Features
        1.  FIDO U2F (2FA) supportPhabricator supports FIDO U2F / passwordless / multi-factor authentication.
        2.  Kanban BoardPhabricator allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
        Discontinued

        Effective June 1, 2021: Phabricator is no longer actively maintained.https://admin.phacility.com/phame/post/view/11/phacility_is_winding_down_operations/

        Screenshot
        Screenshot
      • Trac icon

        Trac

        • Mac
        • Windows
        • Linux
        • Online
        • BSD
        • Self-Hosted
        158 alternatives to Trac 

        Trac is an enhanced wiki and issue tracking system for software development projects. Trac uses a minimalistic approach to web-based software project management. Our mission is to help developers write great software while staying out of the way.

        Screenshot
      • Mantis Bug Tracker icon

        Mantis Bug Tracker

        • Mac
        • Windows
        • Linux
        • BSD
        • Self-Hosted
        93 alternatives to Mantis Bug Tracker 

        Mantis Bug Tracker is a free and open source, web-based bug tracking system. It is written in the PHP scripting language and works with MySQL, MS SQL, and PostgreSQL databases and a webserver. MantisBT can be installed on Windows, Linux, Mac OS, OS/2, and others.

        Screenshot
      • AFFiNE icon

        AFFiNE

        • FreeOpen Source
        • Mac
        • Windows
        • Linux
        • Online
        • Software as a Service (SaaS)
        82 alternatives to AFFiNE 

        There can be more than Notion and Miro. Affine is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.

         Suggest and vote on features
        Features
        1.  Kanban BoardAFFiNE allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
        2.  Goal TrackingAFFiNE can be used for tracking progress toward personal or business goals.
        3.  Ad-freeAFFiNE doesn't contain any form of external advertising.
        Screenshot
        Screenshot
      • ZenTao icon

        ZenTao

        • Windows
        • Linux
        • Online
        • Android
        • Self-Hosted
        244 alternatives to ZenTao 

        ZenTao is an open source project management tool, supporting Scrum. It integrates product management, project management, bug management and QA management, etc., covering all lifecycle of software development.

         Suggest and vote on features
        Features
        1.  Gantt-chartsZenTao allows you to visualize your project plan through a timeline with schedule bars and keep track of the work done.
        2.  Scrum BoardsTrack your team's work progress in ZenTao through individual sprints across different stages of your workflow, using the Scrum methodology.
        3.  Kanban BoardZenTao allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
        My Dashboard
        Kanban
      Showing 10 of 27 alternatives
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