On-The-Fly Email Validation is a free Chrome add-on developed by US Nerd. As a browser extension, it provides users with a convenient way to check for spam-trap, abuse, invalid, and more email addresses. With its clean and simple interface, this tool offers a fast and efficient solution for email validation.

One of the key features of On-The-Fly Email Validation is its compatibility with popular platforms such as hunter.io and Salesforce. This means that users can easily integrate the add-on with these platforms to validate emails directly. Additionally, the extension is also capable of scraping a webpage and exporting a validated email list.

This add-on is particularly useful for those who frequently book orders over the phone and need to verify email addresses. Its seamless integration with the Chrome browser makes it a convenient tool for anyone in need of quick and accurate email validation.