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
Wire is primarily focused on security and modern communication methods with features like end-to-end encryption and self-destructing messages, making it suitable for users who prioritize privacy. Kopete, on the other hand, is an open-source application that supports a wide range of messaging protocols, making it more versatile for users looking for traditional messaging features and customization options.