Number Crusher Extension is a free add-on designed for Chrome that streamlines the process of extracting phone numbers from web pages. This tool is particularly useful for Sales Development Representatives (SDRs) who frequently make cold calls, as it eliminates the need for manual copying and pasting of phone numbers, saving valuable time during calls.

The extension allows users to easily scrape phone numbers from the current tab and copy them directly to the clipboard. By using the keyboard shortcut Control+Shift+Q, users can quickly gather all relevant phone numbers displayed on the page, enhancing productivity and efficiency in the calling process.