Instantbird is a cross-platform instant messaging client based on Mozillas XULRunner and the open source library libpurple used in Pidgin. Developed by Florian Quèze and Quentin Castier
License: Open Source
Instantbird offers a more customizable interface and supports a wide range of protocols, making it an attractive choice for users who prioritize personalization. In contrast, qutIM provides a straightforward user experience but lacks some advanced features like encryption and mobile support.