tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page.

Smartsupp is a free live chat for your website.

csupport Live Chat and Customer Support service software.

Firehose Chat provides live chat for website visitors.

Kayako is a customer service software.

Visitlead Live Chat is a live chat software for websites.

Banckle Chat is an application for online chat & customer support solution.

Mibew Messenger is an open-source live support application written in PHP and MySQL.

UserEngage is a Real-Time Customer and User Engagement Tool for Big and for Small Businesses, designed for maximizing the conversion.

LiveChat is an online customer service software with live support, help desk software, and web analytics capabilities.

Crisp is a customer messaging software.