philc/vimium

Vimium is a browser extension that provides a keyboard-driven interface for web navigation. By mapping standard text editor commands to browser interactions, it enables users to navigate web pages and interface elements without relying on a mouse or trackpad.

The project functions as a customizable input mapper that intercepts low-level keyboard events at the document root. This allows users to override default browser shortcuts and define personalized command sequences to tailor their browsing workflow. The extension maintains consistent control across all browser environments, including restricted pages, by injecting isolated scripts that manage navigation logic and interface overlays.

Beyond core navigation, the tool includes a declarative engine for managing custom key mappings and uses isolated rendering techniques to display interface elements without conflicting with host page styles. It is designed to provide an alternative input method for browser interaction, facilitating mouse-free control for common web tasks.