Kopete is a multi-protocol, free software instant messaging client released as part of the KDE Software Compilation. Although it can run in numerous environments, it was designed for and integrates with the KDE Plasma Workspaces. Developed by kde.org
License: Open Source
Kopete is primarily focused on instant messaging with a user-friendly interface and support for multiple chat protocols, while Jitsi excels in video conferencing with high-quality audio and video, making it ideal for larger group calls. The choice between them depends on whether the user prioritizes messaging or video communication.