Glance

Glance is a Quick Look plugin for macOS that adds preview support for many file formats that the operating system does not handle natively. It renders source‑code files with syntax highlighting, displays Markdown documents, unpacks common archive types, shows Jupyter notebooks, and parses tab‑separated values, all within the standard Quick Look pane. The plugin uses the newer Quick Look API introduced in macOS 10.15, works with Dark Mode, and can be extended to additional formats by developers.

The utility is aimed at macOS users who frequently browse diverse file types in Finder and want consistent, on‑the‑fly previews without opening separate applications. By consolidating the functionality of several specialized plugins into a single package, Glance reduces the need for multiple installations and offers a uniform visual experience.

Glance is distributed as a stable macOS‑only binary, installable via Homebrew or a direct DMG download, and is maintained as a fork that updates compatibility for recent macOS releases while fixing earlier bugs. Contributions and issue reports are welcomed through its GitHub repository.