The best Application Launcher alternative to Franz is Rambox, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to Franz and five of them are Application Launchers so hopefully you can find a suitable replacement. Other interesting Application Launcher alternatives to Franz are Station, Freeter, Quick Web Apps and Tangram.
A digital workspace organizer that allows you to unify as many applications as you want, all in one place. It is perfect for those who care about productivity while working with many business and personal apps.
Station is the first open-source smart browser for busy people. A single place for all of your web applications.
The smartest way to work on your computer. Freeter is a productivity app that allows you to gather everything you need for work in one place, organized by projects and workflows, and have a quick access to them.
Quick Web Apps written with love and libcosmic. Turn Any URL into a Web App, running in a separate window of any browser installed on your system, selected according to your preference. Integrates with your desktop environment (icon pinnable to the dock).
Tangram is a new kind of browser. It is designed to organize and run your Web applications. Each tab is persistent and independant. You can set multiple tabs with different accounts for the same application.
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Very similar concept. Rambox is also open-source and supports more applications.