Smartsupp

It is a free live chat for your website. Start real-time conversations with your web visitors, answer their questions and boost your online sales. An unlimited free live chat solution which will probably be most useful for small and medium enterprises.

Smartsupp is a tool in the Customer Support Chat category of a tech stack.

Smartsupp is an open source tool with GitHub stars and GitHub forks. Here’s a link to Smartsupp's open source repository on GitHub