Yodiz

Redmine is a flexible project management web application. Written using Ruby on Rails framework, it is cross-platform and cross-database. It integrates with a number of different SCM:s including Subversion...

[This application is no longer supported or in development] OpenProj is a free, open source project management solution. OpenProj is a replacement of Microsoft Project and other commercial project solutions.

Task Coach is a well-structured, portable, Open Source todo / task manager (supporting 50 languages). It grew out of frustration that well-known task managers, such as those provided with Outlook …

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 …

Nevernote, now named NixNote, is an open source clone of Evernote designed to run on Linux. It is written in Java so it will also run on Windows & OS-X, …

MantisBT is a free popular web-based bugtracking system. It is written in the PHP scripting language and works with MySQL, MS SQL, and PostgreSQL databases and a webserver. MantisBT has …

Launchpad is a collaboration and Bazaar code hosting platform for (primarily open-source) software projects. Hosting is free for public projects, but if you want private code branches, a private...

Gitorious is a code hosting service under the Free Software GNU AGPL license. Gitorious is a great way of collaborating on distributed open source projects. Gitorious provides open source infrastructure …

Track your tasks and projects in a plain text file, todo.txt. A todo.txt is software and operating system agnostic; it's searchable, portable, lightweight and easily manipulated.

Open Atrium is an Installation Profile for Drupal. Open Atrium is an intranet in a box that has group spaces to allow different teams to have their own conversations. It …

Org-mode is for keeping notes, maintaining ToDo lists, doing project planning, and authoring with a fast and effective plain-text system. Available also as MobileOrg on iPhone (...

Super awesome task management. Nitro is the best way to get things done. It's simple, fast and powerful at the same time. Nitro also syncs with Dropbox or Ubuntu One. …

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? …

Tasque is a simple task management app (TODO list). The main window has the ability to complete a task, change the priority, change the name, and change the due date …

The Bug Genie is a free/open source, web-based issue tracking system - built on free and open source technology. Written in PHP, and runs on all major server platforms.

ClockingIT is a free hosted application, keeping track of all your tasks and the time you spend on them. Extensive features Project Management, Collaboration and Time Tracking ...and its free! …

Bugzilla is a "Defect Tracking System" or "Bug-Tracking System". Defect Tracking Systems allow individual or groups of developers to keep track of outstanding bugs in their product...

todoyu is an extendable, web-based, open source project and task management system. It is geared to the needs of SMEs, tailored to project-related work and suitable for agencies, consultants, architects …

Collabtive is a cloud based groupware, easy to use and efficient for your projects.

Fast and powerful management tool for Mercurial and GIT with a built in push/pull server and full text search and code-review. It works on http/https and has a built in …

Indefero is a web based project hosting service which supports git and svn based projects. It provides bug tracking, a markdown based documentation wiki, file downloads, code reviews, a tagging …

Rachota is a portable application for timetracking different projects. It runs everywhere. It displays time data in diagram form, creates customized HTML reports or analyses measured data and suggests hints …

LibrePlan is an open source web application for project planning, monitoring and control. LibrePlan is a collaborative tool to plan, monitor and control projects and has a rich web interface …

SOGo is groupware server with a focus on scalability and open standards. SOGo provides a rich AJAX-based Web interface and supports multiple native clients through the use of standard protocols …

Flyspray is an uncomplicated, web-based bug tracking system written in PHP for assisting with software development.