What is Signal?
Signal is a free, open-source messaging application that provides end-to-end encryption for all communications. Developed by the Signal Foundation, a non-profit organization, Signal has become the gold standard for secure messaging. The app supports text messages, voice calls, video calls, and file sharing, all protected by strong encryption.
Security Features
- End-to-End Encryption: All messages encrypted with Signal Protocol
- Perfect Forward Secrecy: Each message uses unique encryption keys
- Disappearing Messages: Auto-delete messages after set time
- Screen Security: Prevent screenshots in app
- Registration Lock: Protect account from unauthorized transfers
- Open Source: Code publicly available for audit
Why Use Signal?
Signal provides military-grade encryption that protects your communications from surveillance and interception. The Signal Protocol is so trusted that it's used by WhatsApp, Facebook Messenger, and Google Messages. However, Signal goes further by collecting minimal metadata and operating as a non-profit focused solely on privacy.
Download Signal
Get the most secure messaging app trusted by privacy advocates worldwide.
Visit Signal