Syntax Highlight

The Quick Look extension adds macOS preview support for source code files on Catalina and later. When a file is selected in Finder and the Quick Look shortcut is invoked, the extension renders the code with syntax highlighting using the Highlight engine, presenting a formatted view without opening an editor.

It is aimed at developers and anyone who frequently browses code files, allowing rapid visual inspection of many programming languages directly from the file manager. The extension integrates with macOS’s Uniform Type Identifier system, so it can recognize supported formats based on their UTI rather than just file extensions.

The application is distributed as a signed, notarized universal binary for both Intel and Apple silicon, and can be installed via a pre‑compiled bundle, Homebrew, or by building from source. After a one‑time launch, the Quick Look extension becomes available in System Preferences, and users can configure rendering options, external language server support, and version‑control features through the app’s settings.