State-of-the-art end-to-end encryption (powered by the open source Signal Protocol) keeps your conversations secure. We can't read your messages or listen to your calls, and no one else can either.

Signal is committed to your privacy. Signal runs on donations as a nonprofit. Donate here!

Signal users can send private messages and make secure calls to other Signal users anywhere in the world for free over the internet. All Signal-to-Signal communication is private and end-to-end encrypted.

A Signal group is built on top of the private group system technology. The Signal service has no record of your group memberships, group titles, group avatars, or group attributes.

Jan 27, 2025 · With Signal on Desktop and iPad, you can link your primary Android or iOS account with another device, letting you check and respond to messages in both places or conduct video …

"Signal", Signal logos, and other trademarks are trademarks or registered trademarks of Signal Technology Foundation in the United States and other countries (more info here).

Signal advises you whenever a safety number has changed. This allows users to check the privacy of their communication with a contact and helps protect against any attempted man-in-the-middle attacks.

"Signal", Signal logos, and other trademarks are trademarks or registered trademarks of Signal Technology Foundation in the United States and other countries (more info here).

Opening a call link in a browser does not tell the Signal organization which call you are trying to join. If the call creator has a setting to Require admin approval, you will wait until you are approved to join.

Signal is committed to your privacy. Signal runs on donations as a nonprofit. Donate here!