ClutterSignal is a browser extension that tells you if a link or email looks suspicious or dangerous, and why before you act. Choose between a local check or the cloud check to our servers. Any information sent to our servers are only used to diagnose the message and nothing is stored after running through our security screen. Start with the 7-day free trial, then $4.99/month. Available now on Chrome, Firefox and Edge.
Cluttersignal by Clutterstrike
Launch date
Cluttersignal by ClutterstrikeA second opinion on every email and link you get
Launched on October 5th, 2026