1. UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.

  2. Open-source, self-hosted customer feedback software, live chat and helpdesk system that you can install on your server. Organize documentation using knowledge base and get feedback from social networks with centralized system

  3. Get Satisfaction is the leading customer engagement platform that helps companies build better relationships with their customers and prospects, through the best online customer community.

  4. Free online usability surveys with demographic information. Detailed click tracking for websites and feedback button for online user forum. Easy signup.

  5. Online customer support solution - Feedback Forum, Helpdesk (ticketing service), Knowledge Base and Live Chat by UserEcho

  6. Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community

  7. Zendesk is a beautiful, lightweight help-desk solution.

  8. osTicket is a widely-used open source support ticket system.

  9. Helprace is a customer service software suite linking a ticket system with help desk software, giving customer support agents a complete helpdesk solution.

  10. Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.

  11. Simple, effective web-based customer feedback management system, forums, help desk software and support ticket system, empowering customer support.

  12. Collect feedback on your website and find out more about your visitors.