MantisBT

MantisBT is an open-source issue tracker for teams that want to run their own PHP-based system and tailor its workflow. It suits organizations with administrators who can manage servers, databases, upgrades, and integrations. The zero software price is compelling, but self-hosting makes operational responsibility part of the purchase decision.

Overview

Released under the GNU General Public License, MantisBT combines bug tracking with project-management tools. Roadmaps, change logs, time tracking, and reporting help teams follow planned work and effort instead of treating every issue as an isolated ticket. That makes it a stronger fit for structured development projects than a bare defect list.

Deployment is self-hosted. Installation requires a web server, PHP, and a supported database; current requirements call for PHP 8.1.0 or newer and a server such as Apache or IIS. Server operating-system support includes Linux, Windows, and macOS, while database support covers MySQL, MS SQL, and PostgreSQL. Chrome, Firefox, Safari, Opera, and Edge are listed as compatible browsers.

Key features

Workflow and access control

Configurable workflow transitions and access thresholds let administrators define how issues progress and which users may perform actions. This is useful when a team needs approval gates or role-specific handling, although configuring those rules and keeping them aligned with changing processes falls to the organization running MantisBT.

Notifications and issue detail

Email notifications cover issue changes and notes, and messages can include custom fields and issue details. Stakeholders can therefore follow updates without constantly opening the tracker, while teams retain control over which information appears in mail.

Project tools and extensibility

Roadmaps, change logs, time tracking, and reporting provide project context around defects and requests. The plugin system accepts officially maintained and third-party extensions, giving technical teams a route to adapt the installation beyond its core behavior. Extension choice and ongoing compatibility, however, become another maintenance consideration.

API and integrations

The bundled REST API is the primary web-service integration path. It supports API tokens, web-UI cookie sessions, and anonymous access when an administrator enables it; the combination offers options for automation but requires careful access decisions. The distributed Postman collection and shared API definitions can help developers work from a prepared reference. MantisBT supports several authentication methods out of the box, but it does not yet support hybrid authentication scenarios, which can rule it out for environments that must combine authentication schemes.

Pricing

Plan	Price	Deployment
MantisBT	free	Open-source, self-hosted installation

The MantisBT plan has no software charge, no seat quota, and no paid tier stated for the self-hosted product. That makes it suitable for organizations willing to budget for their own server administration rather than per-user licensing. There is no free trial because the software itself is free; the commitment is the work of installing, securing, upgrading, and supporting it.

For teams that prefer a managed option, the vendor’s MantisHub service adds backups, upgrades, support, data migration, and add-ons. Its hosting offer includes a free trial without a credit card, permits cancellation at any time, and lets customers take their data with them. Those terms reduce operational overhead, but hosted-service pricing is custom rather than the 0.00 USD self-hosted plan.

Platforms

MantisBT runs as a web application on Linux, Windows, or macOS servers and requires PHP 8.1.0 or later plus Apache, IIS, or another supported web server and database. Users access it through compatible desktop browsers. An API platform is included for service integrations, so it can sit alongside other development systems without requiring a separate client application.

Who it's for

MantisBT is aimed at companies whose technical staff evaluate, install, and maintain internal software. It is a good choice for teams needing configurable issue handling, project roadmaps, time accounting, reporting, and a REST integration surface without a license bill. It is less suitable for small groups that want a ready-to-use hosted tracker, or for organizations requiring hybrid authentication, unless those constraints can be addressed elsewhere.

Pros and cons

Pros

• No software fee: The GPL-licensed, self-hosted plan costs 0.00 USD, avoiding recurring per-seat charges.
• Useful project scope: Roadmaps, change logs, time tracking, and reporting extend tracking beyond individual defects.
• Configurable control: Workflow transitions, access thresholds, custom fields, and notification content support organization-specific processes.
• Integration path: REST API authentication options and a distributed Postman collection support web-service development.
• Hosting fallback: MantisHub offers backups, upgrades, support, migration, add-ons, a no-card trial, cancellation at any time, and data portability.

Cons

• Administrative burden: Your team must supply and maintain the web server, PHP runtime, database, upgrades, and backups unless it chooses MantisHub.
• Authentication limitation: Hybrid authentication scenarios are not supported.
• Configuration responsibility: Flexible workflows and plugins require administrators to define rules and manage extension compatibility.

Alternatives

Choose Linear when you want a hosted, freemium tracker with Android and iOS clients; its free plan allows unlimited members, two teams, and 250 issues.

YouTrack is a better fit when a hosted service and a defined small-team allowance matter: Cloud Free covers up to 10 users with 30 GB of storage.

Pick Backlog if you need a free-forever hosted option with Git and Subversion, one project, 10 users, and 100 MB of storage.

Bugzilla is another free, open-source bug tracker with self-hosted and API access.

Trac is a free, self-hosted open-source project option.

Launchpad is a free platform that includes an open-source-project plan.

Redmine offers free, GPL-licensed, self-hosted project software.

Roundup is free software with an MIT license except for noted bundled components.

For broader comparisons, see Game Bug Tracking Software and Issue Tracking Software.

Verdict

MantisBT is a strong choice for organizations that want a capable, extensible issue system at no software cost and have the staff to operate it. Its project tools, configurable workflow, and REST API give it practical depth. Look elsewhere if you need turnkey hosting, hybrid authentication, or a client experience that avoids server administration; MantisHub can reduce that burden, but it changes the cost decision to custom hosted pricing.