1. Hygger - is an Agile project management tool with built-in prioritization.

  2. BugMuncher is a website feedback tool that allows users to draw on your website to highlight problems, and then sends you the screenshot.

  3. Lightweight, smart, elegant and powerful app to manage your tasks and issues.

  4. 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.

  5. Kanban for GitHub Issues

  6. Microsoft Planner lets you easily bring together teams, tasks, documents, and conversations for better results.

  7. FogBugz is the world's easiest bug tracking system, built for teams who are serious about shipping great software.

  8. Zoho Bug Tracker is an online web based bug tracking / issue management software tool

  9. ZipBoard is a web-based visual bug tracking & issue tracking tool that helps developers, testers and project managers collaborate during website and elearning development.

  10. Advanced error tracking & crash management solution for C/C++ applications running in every environment.

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

  12. Browser extension that makes GitHub cleaner & more powerful