Gmail Multiple TO Alert is a Chrome extension designed to send an alert when multiple email addresses are added to the 'To' field in Gmail. This tool aims to enhance security by notifying users when they are sending emails to multiple recipients, ensuring compliance with GDPR regulations. By providing a safeguard against unintentional mass emails, this add-on offers peace of mind for users concerned about data privacy.

With Gmail Multiple TO Alert, users can maintain control over their email communications by receiving notifications if they are including multiple recipients in the 'To' field. This feature serves as a useful reminder to prevent accidental sharing of sensitive information and promotes a more secure email handling process.