When comparing Slate vs Breeze, the Slant community recommends Slate for most people. In the question“What is the best window manager for Mac?” Slate is ranked 4th while Breeze is ranked 24th. The most important reason people chose Slate is:
Slate is similar to Linux WMs like Xmonad in that it is nearly infinitely configurable. You can either use the default configuration file or just Javascript for very complex/dynamic settings. Slate also offers editing a ".js" or a ".slate" file for configuration.
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Pros
Pro Extremely configurable
Slate is similar to Linux WMs like Xmonad in that it is nearly infinitely configurable. You can either use the default configuration file or just Javascript for very complex/dynamic settings. Slate also offers editing a ".js" or a ".slate" file for configuration.
Pro Based on hotkeys
Hotkeys can be set to re-size and focus windows, as well as activate layout presets.
Pro It's free
Slate is completely free to download and use, which is a great option in a field of Mac WMs that often costs money to use.
Pro Allows for tiling
Slate allows for customizing the config file in order to emulate tiling windows.
Pro Lets you set default layouts
By using a feature called "snapshots", users can set up different default window layouts in Slate that they can switch to and from on the fly.
Pro Window hints
Slate offers window hints which are an intuitive way to change window focus.

Pro Simplicity
In Breeze, the user can very quickly assign pre-set window positions to hot-keys, although there are not many advanced hot-key options.
Pro Ease of use
The following are number of benefits of using Breeze:
- It's super simple to setup.
- It focuses on basic window management.
- It works with Spaces.
- "Nag" mode cab be used indefinitely.
Pro Runs in the menu bar
Breeze lives in the menu bar and there are no windows to clutter my UI.
Cons
Con Project is no longer in development
Development is no longer active on this project as of 2017.
Con Hard to configure
There's no graphical user interface for configuring Slate, meaning it has to be done from the command line interface or by editing a config file. This makes it somewhat difficult and time-consuming.
Con Missing features
Unable to perform all tasks of software it was meant to replace.
Can not move windows between 'Spaces' (virtual desktops).
Con Video fail
Demonstration video failed to highlight any of the advantages of the windowing system. Or at least, the advantages were so subtly intrinsic that no-one who didn't already use the system could appreciate them.
Con No Adobe CC support
Adobe CC products do not respond to Breeze.
