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 is known for its lightweight and open-source nature, making it ideal for users who prioritize speed and customization. In contrast, IM+ offers a broader range of messaging service support and rich media capabilities, appealing to users who need a versatile communication tool.