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Redmine

redmine.org

Free plan Open source WebWindowsmacOSLinuxAPISelf-hosted
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Spec score 8.8 #43 of 196 in Project management tools

What it is

Redmine is an open-source web application for managing projects, available for self-hosting. 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 set workflow transitions by issue type and role. Gantt charts and calendars use issue dates for planning, and 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 costs nothing for self-hosting. It should run on most Unix, Linux, macOS, and Windows systems where Ruby is available, but it does not support JRuby. The project directs users to forums and IRC for help and discussion. The download page identifies the 7.0.x branch as the latest stable version, with new features, bug fixes, and security updates.

Spec sheet

What it does
Redmine is a flexible, cross-platform project-management web application built with Ruby on Rails and designed for self-hosting.Read 15 Oct 2026 · redmine.org
Product
Redmine is a flexible, cross-platform and cross-database project management web application that can be self-hosted.Read 9 Oct 2026 · redmine.org
API
The REST API provides access and basic create, update and delete operations for documented resources, in XML and JSON formats.Read 9 Oct 2026 · redmine.org
Security
The security advisories page lists vulnerabilities fixed in Redmine releases and asks vulnerability reporters to email security(at)redmine.org.Read 9 Oct 2026 · redmine.org
Support
The project directs users to its forums and IRC chatroom for help and discussion.Read 9 Oct 2026 · redmine.org
License
Redmine is open source and released under the GNU General Public License v2.Read 9 Oct 2026 · redmine.org
Access control
Administrators can define roles and permissions and assign different roles to users in each project.Read 15 Oct 2026 · redmine.org
API authentication
REST access can use HTTP Basic authentication or an API key supplied as a parameter, credential, or X-Redmine-API-Key header.Read 15 Oct 2026 · redmine.org
API coverage
Issues, projects, users, time entries, and news are documented as stable API resources, while many other resources remain alpha or beta.Read 15 Oct 2026 · redmine.org
Authentication
Redmine supports authentication against multiple LDAP directories and optional online user self-registration.Read 9 Oct 2026 · redmine.org
Collaboration
Features include project wikis and forums, news, document and file management, feeds and email notifications.Read 9 Oct 2026 · redmine.org
Content management
Projects include news, documents, file sharing, per-project wikis, and forums.Read 15 Oct 2026 · redmine.org
Custom fields
Custom fields are available for issues, time entries, projects, and users, with filtering support.Read 15 Oct 2026 · redmine.org
Databases
The feature documentation lists MySQL, PostgreSQL, and SQLite support; installation documentation also covers Microsoft SQL Server.Read 15 Oct 2026 · redmine.org
Documentation and support
Official resources include user and developer guides, a changelog, FAQs, how-to articles, forums, IRC chat, and an unofficial Slack workspace.Read 15 Oct 2026 · redmine.org
Extensibility
The project site provides plugin and theme directories and identifies plugins as a way to extend Redmine.Read 15 Oct 2026 · redmine.org
Gantt and calendar
Gantt charts and calendars are generated from issue start and due dates.Read 15 Oct 2026 · redmine.org
Installation limits
JRuby is unsupported and SQLite is specifically not recommended for multi-user production use.Read 15 Oct 2026 · redmine.org
Issue tracking
Issue types, statuses, and workflow transitions can be customized by issue type and role.Read 15 Oct 2026 · redmine.org
Languages
The official feature page lists Redmine as available in 49 languages.Read 15 Oct 2026 · redmine.org
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.Read 15 Oct 2026 · redmine.org
LDAP
Redmine supports authentication against multiple LDAP directories and optional automatic account creation.Read 15 Oct 2026 · redmine.org
Licence
Redmine is open source under the GNU General Public License version 2 or later.Read 15 Oct 2026 · redmine.org
Limit: Capterra users
Capterra reviewers report an outdated or unintuitive interface, difficult installation, maintenance work, and weaker Agile support than newer tools.Read 15 Oct 2026 · capterra.com
Limit: G2 users
Reviewers repeatedly criticize the dated interface, confusing Agile or sprint workflows, limited reporting, plugin compatibility problems, and missing advanced features.Read 15 Oct 2026 · g2.com
Limit: GetApp users
GetApp's synthesis says setup and maintenance require technical skills and that the interface is dated, complex, and less suitable for larger teams needing polished UX.Read 15 Oct 2026 · getapp.com
Limit: Trustpilot complaint
The sole Trustpilot reviewer complained about missing basic features, unresolved functionality issues, and project contributors closing tickets without fixing the underlying problems.Read 15 Oct 2026 · trustpilot.com
Limit: TrustRadius users
TrustRadius reviewers cite a learning curve, memory consumption, lagginess, complexity, and a lack of modern KPI dashboards.Read 15 Oct 2026 · trustradius.com
Maintainer
The site footer credits Jean-Philippe Lang and says Redmine is built and maintained by community volunteers.Read 9 Oct 2026 · redmine.org
Multiple projects
One Redmine instance can manage multiple public or private projects, with project-specific roles and modules.Read 15 Oct 2026 · redmine.org
Notifications
Project activity and issue changes can be consumed through Atom feeds and email notifications.Read 15 Oct 2026 · redmine.org
Planning and time
Redmine provides Gantt charts and calendars based on issue dates, plus time entry and reporting by user, issue type, category or activity.Read 9 Oct 2026 · redmine.org
Praise: Capterra users
Capterra reviewers highlight project tracking, workflow customization, low cost, flexibility, plugins, and time management.Read 15 Oct 2026 · capterra.com
Praise: G2 users
Reviewers repeatedly praise Redmine's flexibility, open-source licensing, self-hosting, ease of basic ticket tracking, and plugin ecosystem.Read 15 Oct 2026 · g2.com
Praise: GetApp users
GetApp's review synthesis says users value robust project and task management, customization, issue tracking, plugins, integrations, and affordability.Read 15 Oct 2026 · getapp.com
Praise: TrustRadius users
TrustRadius reviewers describe Redmine as fast, stable, flexible, configurable, open source, and cheaper to maintain than enterprise alternatives.Read 15 Oct 2026 · trustradius.com
Project management
One Redmine instance can manage multiple projects, with project-specific roles, visibility settings and enabled modules.Read 9 Oct 2026 · redmine.org
Rating on Capterra
4.1 out of 5 from 177 reviews.Read 15 Oct 2026 · capterra.com
Rating on G2
4.0 out of 5 from 257 reviews.Read 15 Oct 2026 · g2.com
Rating on GetApp
4.1 out of 5 from 177 reviews.Read 15 Oct 2026 · getapp.com
Rating on Google Play: OpenRedmine
5.0 out of 5 from 68 reviews.Read 15 Oct 2026 · play.google.com
Rating on Trustpilot
3.3 out of 5 from 1 review.Read 15 Oct 2026 · trustpilot.com
Rating on TrustRadius
10 out of 10 from a cited verified review.Read 15 Oct 2026 · trustradius.com
Release policy
The project describes minor releases approximately every three months, major releases annually, and urgent security fixes as soon as possible.Read 15 Oct 2026 · redmine.org
Release support
The download page identifies Redmine 7.0.x as the latest stable version with new features, bug fixes and security updates, and lists older branches with narrower support or as unsupported.Read 9 Oct 2026 · redmine.org
REST API
The public REST API supports JSON and XML and basic create, read, update, and delete operations for documented resources.Read 15 Oct 2026 · redmine.org
Security process
The project maintains a public security-advisory list and asks vulnerability reporters to email security(at)redmine.org.Read 15 Oct 2026 · redmine.org
Source control
The repository browser supports Subversion, CVS, Mercurial, Bazaar and Git.Read 9 Oct 2026 · redmine.org
Source control integration
The repository browser supports Subversion, CVS, Mercurial, Bazaar, and Git repositories with changeset, diff, and blame views.Read 15 Oct 2026 · redmine.org
Subprojects
Projects can be organized as subprojects under a parent project.Read 15 Oct 2026 · redmine.org
System requirements
Redmine 7.0 supports Ruby 3.2 through 4.0, Rails 8.1, PostgreSQL 14, MySQL 8.0–8.4, SQL Server above 2012, and SQLite 3.Read 15 Oct 2026 · redmine.org
Time tracking
Users can record time against projects or tickets and report time by user, issue type, category, or activity.Read 15 Oct 2026 · redmine.org

Plans and prices

Redmine (self-hosted) Free Open source · GNU GPL v2 · Self-hosted Read 9 Oct 2026 · redmine.org
Self-hosted Redmine Free downloadable source · self-hosted installation Read 15 Oct 2026 · redmine.org

Every Redmine plan and price →

Strong points and limits

Strong points

  • One instance can manage multiple projects
  • Configurable issue types, statuses, and workflow transitions
  • Includes Gantt charts, calendars, and time reporting
  • Repository browser supports five listed systems
  • Free, open source, and self-hosted under GNU GPL v2

Limits

  • Does not support JRuby
  • Requires Ruby to run
  • Support is directed through forums and IRC

Who it suits

Redmine suits teams that want a self-hosted project management application with configurable issue workflows, planning tools, and time reporting. It also fits teams that need project wikis, forums, or repository browsing across the listed source control systems.

Verdict

Redmine combines configurable issue tracking with planning, time reporting, collaboration, and repository browsing in a self-hosted application. It is free under GNU GPL v2, with runtime fit depending on Ruby availability.

Where Specifiction places it

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