Signal

signal.org

Privacy is possible. Signal Messenger makes it easy. At Signal, our goal is to develop open source privacy technology that protects privacy rights, promotes free expression and enables secure global communication. We believe that private messaging should be simple and ubiquitous. Signal combines state-of-the-art security and end-to-end encryption with the features that users expect in a modern messaging application. Millions of people use Signal every day to speak freely, and a growing list of organizations have integrated the open source Signal Protocol into messaging platforms that support billions of users.