Afloat
Keep a selected window floating above the others, move or resize it from any edge, turn it into an overlay, pin it to the desktop — and more.
Functionality
Cursorcerer
Hide your cursor at any time with a global hot key. Handy for those times it gets in the way when you’re watching a video.
FreshBatch
Batch rename files and extensions — just tell it what folder you want to modify, what about the filename you need to change, and what you want to change it to.
HideSwitch
A super simple way to show and hide system files. Just use the toggle on a semi-transparent bezel.
NameChanger
Rename a list of files quickly and easily — and see the changes as you type. Options for changing names include: replace first occurrence, replace last occurrence, replace all, wildcard, prepend, append, character removal, sequence and date.
Rectangle
Another app that lets you move and resize windows, using keyboard shortcuts or snap areas. This one is based on Spectacle, which is no longer being maintained.
Remote Mouse
Turn your iPhone, iPad or iPod into a wireless remote control for your Mac or PC — just like working with a real mouse and keyboard. Useful for presentations.
SelfControl
Block access to distracting websites, mail servers or anything else on the Internet for any period of time you like. They stay block until the time is up — even if you restart your computer or delete the application.
Spectacle
Organize your windows with easy-to-remember keyboard commands. Put them to the left, right, top or bottom. Put them corners. Centre them. Make them go full screen. It’s a great way to make comparisons, and it works in all apps. No longer actively maintained.
Tiles
Easily organize your windows by dragging them to the edges of the screen, using keyboard shortcuts, or clicking on options in the menu bar.