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Redmine

Computer bug tracking software.

What it is

Redmine is a long-running open-source project management and issue tracker written in Ruby on Rails. It supports multiple projects with sub-projects, role-based access control, Gantt charts and calendars, time tracking, wikis, forums and files per project. Its flexibility comes largely from a plugin ecosystem and themes built up over many years. Teams that want self-hosted issue tracking without a subscription model still standardize on it.

Redmine pricing

Redmine does not publish a plan ladder we could verify. Pricing not verified.

Prices read from the vendor's own pricing page on 2026-09-03. Vendors change plans without notice — check the source before you budget. Price verification log.

Key features

  • Multi-project support

    Nested projects with per-role permissions and cross-project views.

  • Gantt and calendar

    Schedule issues visually and track time against them.

  • Flexible workflows

    Custom statuses, trackers and per-role issue transitions.

  • Plugins and themes

    A large ecosystem built up over the project's long life.

Strengths and trade-offs

What works well

  • Free and self-hostable with no seat limits
  • Plugin ecosystem covers most needs
  • Stable and predictable

Where it falls short

  • Interface looks its age
  • Plugins vary in quality and maintenance
  • Ruby stack needs someone to maintain it

Who it is for

Organisations that want issue tracking without licence costs.

Our verdict

Unfashionable and still working. If the dated interface is acceptable, it costs nothing but hosting.

Frequently asked questions

Is Redmine still maintained?
Yes, though releases move slowly. It is a mature project with a large plugin ecosystem rather than a fast-moving product.
Does Redmine have kanban boards?
Not in the core. Gantt, calendar and issue views are built in; boards come from plugins.
Who is Redmine best for?
Organisations that want issue tracking without licence costs.
What are the main drawbacks of Redmine?
The trade-offs we noted: Interface looks its age; Plugins vary in quality and maintenance; Ruby stack needs someone to maintain it.

What we checked

  • Public APIOffers a documented API you can build against.Not checked
  • Mobile appHas a native app for iOS or Android, not just a mobile website.Not checked
  • Open source / self-hostableSource is open and the tool can be run on your own infrastructure.Yes
  • SSO (SAML)Supports SAML single sign-on on at least one plan.Not checked

“Not checked” means exactly that — we have not verified it, and we do not guess.

Evidence and freshness

Status: Source listed, figures not recordedReviewed: 2026-09-03

Limit: Automated check: the vendor page states the software is open source and free to use. An editor has not read it line by line. Covers the open-source edition only; the same vendor may sell a paid cloud or enterprise tier.

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