Apps with 'Quick Look Plugin' feature

Folder Quick Look is a macOS extension that enhances the system’s Quick Look feature by allowing users to instantly preview the contents of folders and compressed archives without opening them. Once installed, you can simply select a folder or supported archive format (such as...

Kiview gives the user the ability to quickly preview different file types without the need to launch the default application.

This is a quick look tool for Windows. Acts just like the one in OS X , but Seer is more powerful and faster.

Folder Preview is a Quick Look extension that lets you preview the contents of a folder.

By default, macOS doesn't provide previews and thumbnails for WebP, a modern image format providing superior, lossless and lossy compression for images on the web. WebPQuickLook fills this gap by allowing you to see previews and thumbnails of .webp images on your Mac.

QLStephen is an Apple OSX Quick Look plugin that lets you view plain text files without a file extension. It is useful for reading files like README, INSTALL, CHANGELOG, Makefile, Rakefile and CapFile (files that the default Quick Look plugins don't handle).

Very much like Folder Preview, Folder Preview Pro allows you to quick look folders in Finder.

The App That Opens Apps.