
Description: Instantbird is an open-source instant messaging client that supports popular chat protocols like XMPP/Jabber, IRC, Twitter and Facebook Chat. It is based on Mozilla technology and aims to be a lightweight and customizable alternative to larger IM clients.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Trillian is an instant messaging application that supports multiple protocols in one interface, including AIM, ICQ, MSN, Yahoo Messenger, and more. It allows connecting to multiple chat networks at once from a single app.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API