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Redmine
What it is
Redmine is a free, open-source web application for project management that can be self-hosted. A single instance can manage multiple projects, each with its own roles, visibility settings, and enabled modules. Teams can define issue statuses and types, then configure workflow transitions according to issue type and role. Gantt charts and calendars use issue dates, while time entries can be reported by user, issue type, category, or activity. Collaboration tools include project wikis and forums, news, document and file management, feeds, and email notifications. The repository browser supports Subversion, CVS, Mercurial, Bazaar, and Git. Its REST API provides basic create, update, and delete operations for documented resources in XML and JSON. Redmine is released under GNU GPL v2 and runs on most Unix, Linux, macOS, and Windows systems where Ruby is available; it does not support JRuby. The project directs users to forums and IRC for help. Its download page identifies the 7.0.x branch as the latest stable version with new features, bug fixes, and security updates.
For and against
For
- One instance can manage multiple projects
- Includes Gantt charts, calendars, and time reports
- Repository browser supports five named systems
- REST API supports XML and JSON
Against
- Does not support JRuby
- Requires Ruby on supported systems
- Help is directed to forums and IRC
The verdict
Redmine combines configurable project and issue management with planning, time reporting, collaboration, and repository browsing. It is free under GNU GPL v2 and can be self-hosted on systems where Ruby is available.
Who it suits
It suits teams that want to host project management software themselves and configure separate roles, visibility, and workflows across projects. Teams using Ruby-based systems can consider its listed Unix, Linux, macOS, and Windows support.
Plans and prices
Self-hosted Redmine
downloadable source · self-hosted installation
Read 15 Oct 2026 · redmine.org
Redmine (self-hosted)
Open source · GNU GPL v2 · Self-hosted
Read 9 Oct 2026 · redmine.org
On the record
- Access control
- Administrators can define roles and permissions and assign different roles to users in each project.redmine.org · read 15 Oct 2026
- API
- The REST API provides access and basic create, update and delete operations for documented resources, in XML and JSON formats.redmine.org · read 9 Oct 2026
- API authentication
- REST access can use HTTP Basic authentication or an API key supplied as a parameter, credential, or X-Redmine-API-Key header.redmine.org · read 15 Oct 2026
- API coverage
- Issues, projects, users, time entries, and news are documented as stable API resources, while many other resources remain alpha or beta.redmine.org · read 15 Oct 2026
- Authentication
- Redmine supports authentication against multiple LDAP directories and optional online user self-registration.redmine.org · read 9 Oct 2026
- Collaboration
- Features include project wikis and forums, news, document and file management, feeds and email notifications.redmine.org · read 9 Oct 2026
- Content management
- Projects include news, documents, file sharing, per-project wikis, and forums.redmine.org · read 15 Oct 2026
- Custom fields
- Custom fields are available for issues, time entries, projects, and users, with filtering support.redmine.org · read 15 Oct 2026
- Databases
- The feature documentation lists MySQL, PostgreSQL, and SQLite support; installation documentation also covers Microsoft SQL Server.redmine.org · read 15 Oct 2026
- Documentation and support
- Official resources include user and developer guides, a changelog, FAQs, how-to articles, forums, IRC chat, and an unofficial Slack workspace.redmine.org · read 15 Oct 2026
- Extensibility
- The project site provides plugin and theme directories and identifies plugins as a way to extend Redmine.redmine.org · read 15 Oct 2026
- Gantt and calendar
- Gantt charts and calendars are generated from issue start and due dates.redmine.org · read 15 Oct 2026
- Installation limits
- JRuby is unsupported and SQLite is specifically not recommended for multi-user production use.redmine.org · read 15 Oct 2026
- Issue tracking
- Issue types, statuses, and workflow transitions can be customized by issue type and role.redmine.org · read 15 Oct 2026
- Languages
- The official feature page lists Redmine as available in 49 languages.redmine.org · read 15 Oct 2026
- Latest release
- The download page lists Redmine 7.0.2, 6.1.5, and 6.0.11 dated 2026-10-01, 2026-10-01, and 2026-08-26 respectively.redmine.org · read 15 Oct 2026
- LDAP
- Redmine supports authentication against multiple LDAP directories and optional automatic account creation.redmine.org · read 15 Oct 2026
- Licence
- Redmine is open source under the GNU General Public License version 2 or later.redmine.org · read 15 Oct 2026
