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WindowSlider is a haxie that adds a sliding and fading effect when opening or closing any window of a cocoa application. It adds a nice touch to the "feel" of MacOS X and it's totally unobtrusive!

Using this preference pane you can:
  • Select which applications are going to be enhanced with Slider, or apply the haxie globally.
  • Choose between an Up->Down or Left->Right sliding effect.
  • Enable or disable the opening and closing animations independently.
  • Adjust the effect duration and sliding width.

What's New

Version 1.3:
  • Universal binary


Mac OS X 10.4 or later

*Previously available here

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WindowSlider User Discussion

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Appolyon Member IconComment+0

I like slider even though I don't use it all that often. While the sliding and the fading in/out effects are great, it takes a brief moment to complete. Not for the excessive optimizers.

A couple of things to note though. It doesn't play nice with Growl. It slides in the notifications nicely, but it flickers back into place slightly on the exit. Nothing harmful, just odd. Same sort of thing with InvisRay, except on the start. It flickers for a moment as it begins the display. Again, purely cosmetic, but worth noting. If you use Unsanity's APE you might as well try it out.

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Version 1.3
BDog Member IconComment+34

This haxie is very cool! One thing I wish it could do. I have Up-Down selected as the slide style, and it won't slide the window down if the bottom of the window is close to the bottom edge of the screen (any 'full screen' window). The same idea holds true that it won't slide down a new window if it is near the menubar (although I don't use that bit).

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Version 1.3
macsterdam Member IconComment+98

I like this a lot, but wish it could run independently of APE. Because of the latter I don't use it.

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Version 1.3
Pierre Chatel (Developer)

I understand you concerns about APE. But I can assure you that it's perfectly safe.


Oh, but I do believe it's save, safety's not the problem, speed is!

I have been a registered user of various Unsanity applications for some time now. However, shortly before switching from a dual G5 to a Macbook Pro, I removed all haxies from my G5, and found the GUI to respond much faster.

I did try the new APE and Slider on my Macbook yesterday, and found that APE still effects the responsiveness of the GUI negatively. That's why I don't like APE anymore.

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Current Version (1.x)


Downloads 2,834
Version Downloads 2,834
Type Utilities / System
License Free
Date 10 Dec 2006
Platform OS X / PPC 32 / Intel 32
Price Free