UseResponse - 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

Usersnap - Usersnap is a customer feedback software for SaaS companies that need to constantly improve and grow their products.

Product Pains - Giving users a louder voice to help teams build better products.

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

Nolt - A fast & beautiful way to collect user feedback

Marker.io - Visual feedback and bug reporting tool for websites