Improve Finder’s QuickLook with plugins

This blog post is a sort of Public Service Announcement for all the MacOS users who don’t know about QuickLook plugins. MacOS’s file explorer Finder has a handy feature Quick Look that allows you to quickly preview a file without opening it. However, on default it supports a rather limited amount of popular file formats. For example, trying to QuickLook an .afdesign file gives the default “preview not available” info box: For text files, the default is to show plain text preview regardless of the underlying format like with Markdown: Luckily, it’s extendable by plugins. I use sbarex’s QLMarkdown for rendering Markdown files. It has a lot of configurable options and themes if you need something specific but has sensible defaults for quickly checking out your Markdown files. Here’s an example QuickLook of README.md for nhl-235: Another example is video files. .mp4 and .mov files preview nicely by default but .mkv and .webm videos don’t. I use Oil3’s QLCodec for mkv files and their…