Astuto is a free, open source, self-hosted customer feedback tool. It helps you collect, manage and prioritize feedback from your users.
Lyra is ideal if your site has documentation, manuals, articles or blog. Or if your site is just a big. Lyra will give you a single analytic tool for tracking user feedbacks on all pages.
All you need is to copy the two lines of code and paste into your html file.
Developers! Collect feedback from your clients & customers without the need for them to create yet another account. Easily send that data into other tools like Slack, Trello, Asana, Jira and Visual Studio Team Services.