Top Alternatives to Mantis Bug Tracker

GitHub is a web-based Git or version control service.

Redmine is a flexible project management web application.

Team Clerk is project and task management software.

Jira is a proprietary issue tracking product, developed by Atlassian.

Trac is an open source, Web-based project management and bug tracking system.

Yodiz is a simple but comprehensive agile tool with visual boards for Sprints, Releases, Backlog, Epics and Issue management.

Pivotal Tracker is a software as a service product for agile project management and collaboration.

Ubirimi is a project tracker for planning, building and launching products.

Ora is a real-time all-in-one workspace for teams.

Phabricator is a suite of web-based software development collaboration tools.

Bugzilla is a web-based general-purpose bugtracker and testing tool.

The Bug Genie is free and open source, web-based project management and bug tracking system.

OpenProject is a web-based project management system for location-independent team collaboration.

Lean Testing is a free bug tracker and test case management software for high performance development teams.

PMRobot is Project Management Software designed exclusively for Software Consulting Companies.

YouTrack is a commercial browser-based bug tracker, issue tracking system and project management software.

Flyspray is a lightweight, web-based bug tracking system written in PHP for assisting with software development and project managements.

Active Collab is a web-based project management tool.

Axosoft (formerly OnTime) is a proprietary project management and bug tracking system, available as hosted or on-premises software.

Tuleap Open ALM is a libre & open source platform for agile management and software development.

FogBugz is an integrated web-based project management system featuring bug/issue tracking, discussion forums, wikis, customer relationship management, and evidence based scheduling.

VisionProject is a Project Management Software that enables you to manage projects in an efficient way, saving you time and money.

TargetProcess is an agile project management software.

Marker is a visual bug reporting tool.

Request Tracker is a ticket-tracking system written in Perl used to coordinate tasks and manage requests among a community of users.

SprintGround is a free task management for small software development teams and freelancers.