1. Trac is a project management and bug/issue tracking system. Provides an interface to Subversion and an integrated wiki.

  2. More than just the world’s fastest bug tracker. Capture client feedback, resolve issues and manage projects visually.

  3. Compose more helpful bug reports and save time with automatically captured web page screenshot, environment details and application usage history.

  4. From planning, to coding, to testing, to customer support, DoneDone is the straightforward, no-nonsense issue tracker. Start a free 30-day trial today!

  5. Bugify is a simple PHP issue tracker, designed to offer powerful bug tracking capabilities in an easy to use system.

  6. Collaborate effortlessly on projects. Whether you’re a team of 5 or studio of 50, Lighthouse will help you keep track of your project development with ease.

  7. Pivotal Tracker: The awesome, lightweight, agile project management tool for software teams. Get your 30-day Free Trial started today!

  8. Sifter is designed to be a simple bug and issue tracker for small teams and works especially great for teams with non-technical folks involved.

  9. Exceptional tracks errors in web apps. It reports them in real-time and gathers the info you need to fix them fast.

  10. Simple, high-reliability, distributed software configuration management

  11. Bazaar is a tool for helping people collaborate.