Share text, voice messages, photos, videos, GIFs and files for free. Signal uses your phone's data connection so you can avoid SMS and MMS fees.

Download Signal for Android, iOS, Linux, macOS, and Windows.

To keep Signal a free global communication service without spam, we must depart from our totally-open posture and develop one piece of the server in private: a system for detecting and disrupting spam campaigns. Unlike encryption protocols, which are designed to be provably secure even if everyone knows how they work, spam detection is an ...

Explore rich features of private messaging. Security. This section contains common questions regarding safety and reliability of the technology in the apps. Troubleshooting. General

To use the Signal desktop app, Signal must first be installed on your phone.

Signal-to-Signal messages are secure and free to send and receive using any internet connection enabled on your phone, including WiFi and mobile data.

Or visit signal.org/install from your phone.

Encryption in messaging environments integrates many ideas which often need to be composed separately in different applications. We make an effort to break out ideas into independent specifications so that they can be integrated as appropriate for different projects.

Versende kostenlos Text- und Sprachnachrichten, Fotos, Videos, GIFs und sonstige Dateien. Signal verwendet die Internetverbindung deines Telefons, sodass du Gebühren für SMS und MMS vermeiden kannst.

Signal is free to use and there are no ads, no affiliate marketers, and no tracking in Signal. As Signal is an independent nonprofit,...