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Listary is an excellent enhancement utility for list controls used everywhere: Windows Explorer, Task Manager, Registry Editor, and innumerable third-party applications.It searches folders, files or anything else as-you-type. Autocomplete, masks, hotkeys, regular expressions (pro version only) are good time-saving features.

FARR also lets you quickly run web searches, send email, manipulate files, control on-screen windows, and much more. Build and share custom commands or install plugins to add tons of new features, like live search features for your clipboard history and your internet bookmarks; a popup a calculator with history tape and persistant variables; and many more..

Quicksilver is a fast and free Mac OS X productivity application that gives you the power to control your Mac quickly and elegantly. Quicksilver learns your habits, making your everyday chores simple and efficient.

GNOME Do allows you to quickly search for many items present on your desktop or the web, and perform useful actions on those items.

LaunchBar is a smart and powerful, keyboard driven productivity utility that lets you access and control every aspect of your digital life. Whatever you want to get done on your Mac – with LaunchBar it’s only a few keystrokes away.

The power of Google on your desktop. Hit ctrl twice and you are ready for a full Google search of you hard drive and networked drives you may have. Indispensable if you need to find files quickly... the price doesn't hurt either!

Lacona is a docker app for Mac OSX that accepts natural language commands. Call up Lacona with a keyboard shortcut and type whatever you want to do. It gives intelligent suggestions as you type and then follows your orders.

Zazu is a new open source productivity app, that allows developers to be in the drivers seat. Unlike other solutions, there is no built-in integrations, so every plugin has the full scope of what Zazu has to offer.

If you can see it, you can search it and share it from any device.Everything seen is remembered devices across all of your devices. Atlas pulls together all the threads of your digital life .Atlas Recall works with all the apps, websites, and services you love. No account authorizations required.Your digital life is more than just files. It’s the web pages, apps, emails, texts, chats, videos and more you use everyday. If you’ve seen it, you can search it with Atlas Recall

Hain is an ALT + SPACE launcher for Windows that looks and works similar to Alfred.

Scherlokk is a lightning fast file search utility build for precise and reliable search of every file which meets the search criteria. Music, pictures, bookmarks, documents, etc can be found quickly and easily. Search can be made on any kind of build in volume, portable volume (pendrives, memory cards, USB drives), network drive (AFP, SMB, FTP), Thunderbolt or Firewire device (CD/DVD, external HDD, slave computer), etc.