Redmine
Open Source
Redmine is a flexible project management web application.
Avaza
Freemium
Avaza is a beautiful online software suite with modules for Project Management, Timesheets, Expenses & Invoicing. Access from anywhere, with any device.
Open Atrium
Open Source
Drupal is a free and open source content-management framework written in PHP and distributed under the GNU General Public License.
SOGo
Open Source
SOGo (Scalable OpenGroupware.org) is an open source collaborative software (groupware) server with a focus on simplicity and scalability.
Ora
Commercial
Ora is a real-time all-in-one workspace for teams.
Bitrix24
Freemium
Bitrix24 is a free (for small businesses) social enterprise platform.
LibrePlan
Open Source
LibrePlan is a free software web application for project management.
Active Collab
Commercial
Active Collab is a web-based project management tool.
Compare Collabtive with alternatives
Compare Bitrix24 and Collabtive and decide which is most suitable for you.
Compare Open Atrium and Collabtive and decide which is most suitable for you.
Compare LibrePlan and Collabtive and decide which is most suitable for you.
Compare Active Collab and Collabtive and decide which is most suitable for you.