Retro AIM Server is an instant messaging server that revives AOL Instant Messenger (and ICQ!) clients from the 2000s.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Mac
- Windows
- Linux
- Self-Hosted
R
SimpleX Chat Alternatives
Alternatives list
Zerion is a secure messaging app and encrypted vault designed for people who need private, anonymous, censorship-resistant communication.
Cost / License
- Free
- Open Source
Application type
Platforms
- Android
- F-Droid
A federated end-to-end encrypted messenger that needs no phone number or email — your account is a cryptographic key you own.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Windows
- Online
- Android
- Self-Hosted
Ukraine
World's most secure P2P messenger. End-to-end encrypted, zero-server architecture, quantum-resistant roadmap. WebRTC direct connections, advanced ECDH + DTLS + SAS verification, full ASN.1 validation.
Cost / License
- Free
- Open Source (MIT)
Application typeApplication types
Platforms
- Mac
- Windows
- Linux
- Online
+2
Krypta is a privacy-first, accountless web chat platform designed for fast, secure, and disposable communication. Unlike traditional messaging platforms that require phone numbers, personal emails, or persistent user profiles, Krypta allows anyone to spin up an end-to-end...
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Online
- Google Chrome
- Software as a Service (SaaS)
Estonia
EU
+1
Private messenger for Android with no phone number or email. Messages are end-to-end encrypted and travel over Tor and Nostr.
Cost / License
- Free
- Open Source (GPL-3.0)
Application type
Platforms
- Android
Germany- EU
+4
Anonymous, end-to-end encrypted two-person chat that runs in the browser and starts from a shareable link. The WebRTC handshake is encrypted inside the link; messages then go directly between browsers. No account, no app, no server in the message path. Open source.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Online
United States
Peer-to-peer encrypted messenger for Android. Messages go device to device, never stored on a company server. No phone number needed.
Cost / License
- Paid
- Open Source (GPL-3.0)
Platforms
- Android
A private, ephemeral messenger that opens in the browser: two people meet in an end-to-end encrypted room, with no account and no install, and everything disappears at the end.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Online
+1
ETHOS is a secure web app for one-to-one chat, group chat, and file transfer. It uses hybrid quantum-safe key exchange, direct WebRTC when possible, and encrypted relay fallback when networks get in the way.
Cost / License
- Free
- Open Source (AGPL-3.0)
Application type
Platforms
- Online
Canada
City of Hats is a secure messaging platform introducing a new concept called location-controlled messaging.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Windows
- Online
- Android
- Canada
FamilyChat is a dedicated messaging app built for families to stay closely connected—without the clutter, noise or distractions of general chat apps.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Android
