1. Rollbar collects errors that happen in your application, notifies you, and analyzes them so you can debug and fix them. Ruby, Python, PHP, Node.js, JavaScript, and Flash libraries available.

  2. The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.

  3. ReQtest is an end to end solution for test management, bug tracking, requirement management and agile project management.

  4. See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.

  5. Open-source error tracking that helps developers monitor and fix crashes in real time. Iterate continuously. Boost workflow efficiency. Improve user experience.

  6. Manage your project's requirements, test cases and bugs. SpiraTest test management software is the best on the market

  7. The top apps in the world rely on Instabug for beta testing, user engagement and crash reporting.

  8. Visual feedback for web design and development.

  9. It’s all about efficiency. VisionFlow captures your specific information and adapts to your business unique way of working. Use a simple set-up or make it as advanced as you like.

  10. iRise combines fast prototyping with integrated requirements management to ensure you're managing the right requirements and user stories. 

  11. TestRail provides comprehensive test case management for software testing. Organize your testing, boost productivity, get real-time insights, and track progress toward milestones. Integrates with leading issue tracking and test automation tools.

  12. Fiddler is a debugging program for websites.