Disable key input is a free Chrome add-on developed by Takashi Sugimoto (tksugimoto). This add-on allows users to disable specific key inputs or keyboard shortcuts, enabling them to input text on a webpage without triggering any unwanted actions.

The add-on is particularly useful in scenarios where users want to use keyboard shortcuts provided by a webpage's shell. For example, if a webpage provides a shell like the one found in AWS Systems Manager Session Manager, users may want to use the "Ctrl" + "W" shortcut within the shell. However, in Chrome, this shortcut is typically used to close tabs. With Disable key input, users can disable the default "Ctrl" + "W" behavior in Chrome, allowing them to use the shortcut within the webpage's shell instead.

The add-on works by opening the current tab in a new Chrome extension popup. This enables the add-on to intercept and cancel the event triggered by the desired keyboard shortcut, effectively disabling it within the browser.

Disable key input is a valuable tool for users who need to override default keyboard shortcuts in Chrome and utilize them within specific webpages or applications. It provides a seamless way to customize keyboard inputs and enhance the overall user experience.