You can create a custom trigger (like a three-finger tap or a shortcut) and assign it to the built-in macOS action: "Pin Window on Top."
: It works globally with virtually any application window on your Mac.
While the free version only handles standard layout snapping, Rectangle Pro includes a dedicated feature to pin custom application layouts and float specific windows over your main workflow. deskpins for mac link
The original is a popular utility strictly for Windows that allows users to "pin" any window to stay always on top. While there is no official macOS version of DeskPins, several high-quality alternatives for Mac offer identical or improved "always on top" functionality. Top macOS Alternatives to DeskPins
DeskPins for Mac Link: Best Alternatives to Keep Windows On Top (2026) You can create a custom trigger (like a
This method runs via XQuartz. It is not energy efficient and may flicker on Retina displays. Only use this if you are nostalgic for the original UI.
Helium / HeliumLift (floating browser windows) While there is no official macOS version of
For any window pinning tool to function on modern macOS, it almost always requires . This is a core security feature of macOS to prevent malicious apps from controlling your system. When you first launch an app like Floaty or AlwaysOnTop, it will typically guide you through the process.