Free & Open-Source WhatsApp Alternatives

Mobile messaging and calls.

1. Signal ↗ ★ PICKFOSSPRIVATE
   Best-in-class private encrypted messenger.
   ●○○Easy · Phone-number signup
2. Session ↗ FOSSPRIVATE
   Privacy-first chat without phone or email signup.
   ●●○Medium · Different UI, similar features
3. SimpleX ↗ FOSSPRIVATE
   Anonymous messenger — no user IDs or phone numbers.
   ●●○Medium · Different UI, similar features