There are many alternatives to Quicksilver for Mac if you are looking for a replacement. The best Mac alternative is Alfred, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to Quicksilver and many of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Quicksilver are ueli (Free, Open Source), Karabiner Elements (Free, Open Source), CerebroApp (Free, Open Source) and Keyboard Maestro (Paid).
Butler's purpose is to make it easier for you to perform different — potentially recurring — tasks. Butler lets you arrange these tasks in its fully customizable configuration. There, you can assign one or more triggers to a task.
The Spotlight Search Metadata on your Mac is a truly remarkable thing. Given some text it is able to find all occurrences anywhere on the filesystem in the blink of an eye. At that this point your options are limited however.
NuKit is a bundle of lightweight everyday tools to increase productivity and save time. Launcher and Shortcuts provide instant access to applications, files, URLs, Search Engines, System Actions, Scripts, and Dictionary.
A great tool for any power user: Launch any file, directory, application, and website with a single click. Lightweight Launcher provides customizable launch routines that are easily accessible system wide via the menu bar.