Signal is a nonprofit, open-source messaging platform prioritizing user privacy above all else. The app delivers end-to-end encrypted messaging, voice, and video calls while collecting minimal user data. With 100 million downloads and strong adoption among privacy advocates, Signal proves that secure communication doesn’t require corporate data collection.
Why Choose Signal?
Signal provides military-grade encryption through the Signal Protocol, independently audited and adopted by WhatsApp, Facebook Messenger, and Skype. Unlike competitors, Signal operates as a nonprofit refusing all advertising and data monetization. The entire codebase remains open source on GitHub, allowing security experts worldwide to verify nothing is hidden. Your calls, messages, and stories stay private—Signal literally cannot access them.
- Open-source transparency: Complete source code publicly available on GitHub for independent security audits
- Zero data collection: Signal stores only your phone number; no metadata, no activity tracking, no IP logging
- Nonprofit independence: Funded through donations and grants, never selling data or displaying targeted advertising
How It Works
Download Signal, verify with your phone number, and instantly reach other Signal users with encrypted communication. All messages, voice calls, and video calls use end-to-end encryption by default—no toggling settings or enabling special modes. Create group chats with 1,000 members and manage permissions through admin controls. Disappearing Stories vanish after 24 hours, while optional disappearing messages destroy themselves after intervals you set.
Who Should Use It?
Signal serves anyone prioritizing privacy—journalists, activists, everyday users protecting personal conversations. Ideal for sensitive discussions where privacy isn’t optional. Groups managing confidential projects, families seeking communication privacy, or individuals simply believing privacy is a fundamental right. Perfect for users wanting encryption without corporate surveillance infrastructure.