1. Mantis BT
MantisBT is an open source issue tracker that provides a delicate balance between simplicity and power. Users are able to get started in minutes and start managing their projects while collaborating with their teammates and clients effectively. Once you start using it, you will never go back!
2. BugLog HQ
BugLogHQ is a free and open source tool to centralize the handling of automated bug reports from multiple applications. BugLogHQ provides a unified view of error messages sent from any number of applications and servers, allowing the developer to search, graph, forward, and explore the bug reports submitted by the applications.
JIRA is the tracker for teams planning and building great products. Thousands of teams choose JIRA to capture and organize issues, assign work, and follow team activity. At your desk or on the go with the new mobile interface, JIRA helps your team get the job done.
4. Log Digger
LogDigger tools help you collect and classify detailed error reports and logs for your Java applications. In case of error, LogDigger collects request-level logs, context and environment details and notifies you instantly. With error insights provided by LogDigger, developers can reproduce and track down issues faster.
5. Snowy Evening
Snowy Evening is an excellent issue tracking application that focuses to be powerful enough for developers, but simple enough for clients to use with ease. It offers GitHub and jsFiddle integration, with a clean, well-laid out interface.
Bugnet is an open source issue tracking & project management application, BugNET allows multiple projects, custom properties & fields, attachments, comments, email notifications and much more. BugNET is built to take advantage of the latest ASP.NET framework, SQL Server, and Microsoft Server platforms.
7. Pivotal Tracker
Pivotal Tracker is a project management tool that allow you to break your project down into bite-sized stories, use points to estimate each story’s relative complexity, and prioritize it. In essence it lets you track much more than bugs, using a simple workflow to make project development a painless process.
Trac is an enhanced wiki and issue tracking system for software development projects. Trac uses a minimalistic approach to web-based software project management. Our mission is to help developers write great software while staying out of the way. Trac should impose as little as possible on a team’s established development process and policies. Trac allows wiki markup in issue descriptions and commit messages, creating links and seamless references between bugs, tasks, changesets, files and wiki pages. A timeline shows all current and past project events in order, making the acquisition of an overview of the project and tracking progress very easy.
Bugify offers a simple way of managing issues for your projects. Buify made it easy to just get the job done. Bugify features issue priorities, search filters, keyboard shortcuts, email notifications, issue linking, labels, milestones, Markdown (for formatting), user/group permissions and support for multiple languages.
Bugzilla is a “Defect Tracking System” or “Bug-Tracking System”. Defect Tracking Systems allow individual or groups of developers to keep track of outstanding bugs in their product effectively. Most commercial defect-tracking software vendors charge enormous licensing fees. Despite being “free”, Bugzilla has many features its expensive counterparts lack. Consequently, Bugzilla has quickly become a favorite of thousands of organizations across the globe.
Lighthouse offers simple issue tracking and effortless collaboration on projects to help keep track of your project development. You can automatically organize tasks, use tags, set milestones, establish release dates, and create and reply to tickets directly from your inbox.
12. The Bug Genie
The Bug Genie supports a complete project hierarchy, including editions, releases, components as well as parent, child- and subprojects – and you can build it as you please. Access control features lets you define who can see what parts of the project. Don’t want everyone to see the internal build – no worries, The Bug Genie lets you do that!
WebIssues is an open source, multi-platform system for issue tracking and team collaboration. It can be used to store, share and track issues with various attributes, description, comments and file attachments. It is easy to install and use but has many capabilities and is highly customizable.
FogBugz is the world’s easiest bug tracking system, built for teams who are serious about shipping great software. FogBugz incorporates the lessons Joel Spolsky and the team at Fog Creek have learned over a decade of learning how to write software better.
eTraxis is an OpenSource bug tracking system with ability to set up unlimited number of fully customizable workflows. eTraxis can be used for tracking almost anything, but the most popular cases are a bugtracker, a helpdesk, and even a CRM system.
17. Bug Digger
BugDigger helps you to create bug reports at the push of the buttons, automatic capture of screendump, environment data and web site usage history. Quickly mark up the screenshot using built-in editor, BugDigger grabs everything you need. Even busy or inexpert testers can generate useful bug reports.
DoneDone is a simple, effective issue tracker to help you keep on top of bugs, ideas and requests through every phase of your project. You can prioritize issues, assign due dates, correspond and share files directly, all with nothing to install — all you need is a browser and an Internet connection