RainLoop on your desktop, inside Franz
Point Franz at your own RainLoop webmail server and run it as a desktop app on Mac, Windows, and Linux.
- macOS
- Windows
- Linux
RainLoop is the simple, modern, fast web-based mail client people install on their own server when they want a clean front end for their IMAP mail without the weight of a full suite. Because it lives wherever you host it, you usually reach RainLoop through a browser bookmark, one more tab you keep around just to glance at your inbox. Franz turns your RainLoop install into a real desktop service: you point it at your own server URL, and your self-hosted mail gets a fixed home in the sidebar rather than a tab that drifts to the back of the pile.
Connect Franz to your RainLoop install
RainLoop has no single public address, since every deployment sits at its own URL, so Franz asks for your server address when you add the service. Enter the URL where your RainLoop lives, sign in, and your inbox, folders, and contacts load just as they do in the browser. If you run RainLoop for several domains or keep more than one account on it, you can add the service once per server, each as its own tab with an independent session and unread count. Your mail keeps living on infrastructure you control, with Franz simply wrapping the client in a desktop window.
New mail with a notification and a badge
Because RainLoop runs as its own Franz service with a persistent session, the inbox is ready the moment you open the app instead of asking you to log back in. Franz raises a desktop notification, including the notification sound, when new mail arrives, and the unread badge on the service keeps a running count, so you know at a glance that your own server has something waiting. You get the responsiveness of a dedicated mail app while keeping the independence of self-hosting.
RainLoop on every desktop platform
Franz is a native desktop app for macOS, Windows, and Linux, so your self-hosted RainLoop behaves the same wherever you work, with a real dock or taskbar badge and a consistent unread count regardless of operating system. Whether you run your server from a Linux machine or check it from a Mac, the setup feels identical on each. It is the simplest way to give a lightweight, self-hosted webmail client a proper desktop presence without handing control of your mail to anyone else.
Other Email services
Frequently asked questions
Which platforms does RainLoop work on in Franz?
Franz runs RainLoop as a native desktop app on macOS, Windows, and Linux, with the same notifications, badges, and fast switching on every operating system.
Can I use multiple RainLoop accounts at once?
Yes. Franz lets you add RainLoop as many times as you need, one tab per account, all signed in at once. Each tab keeps its own session and unread badge, so you never sign out of one to check another.
Is RainLoop in Franz free?
Franz is free to use with RainLoop and every other service. A free account covers the essentials and takes minutes to set up; paid plans add extra features, but running RainLoop in Franz costs nothing to start.