The most popular alternative is Rambox, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Franz so hopefully you can find a suitable replacement. Other interesting Franz alternatives are Ferdi (Free, Open Source), Miranda IM (Free, Open Source), Empathy (Free, Open Source) and Ripcord (Free Personal).
- Free, open source and cross platform messaging and emailing app that combines common web applications into one.
- Miranda IM is the smaller, faster, easier instant messenger with support for multiple protocols.
- Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols.
- Ripcord is a desktop chat client for group-centric services like Slack and Discord. It provides a traditional compact desktop interface designed for power users.
- Chat everywhere! IM+ is the most widely used mobile IM app! Connect all-in-one to MSN, Yahoo!, Google Talk, AIM, Jabber, ICQ, Facebook, MySpace and Twitter on ALL popular mobile...
- Dialog Messenger is a customized self-hosted platform usable across multi operation systems simultaneously. dialog provides SDK tools for client interface as well as for server.
- Caprine is an unofficial and privacy focused Facebook Messenger app with many useful features.
- What does it do:* Send/receive chat messages* Create/change conversations (rename, add people)* Leave/delete conversation* Notifications
- Free, Open Source and Cross Platform messaging and emailing app that combines common web applications into one.