Cost / License
- Free
- Open Source (Apache-2.0)
Application typeApplication types
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- F-Droid
- Docker
United Kingdom






ChatSecure is a free and open source messaging app that features OTR encryption over XMPP. You can connect to your existing accounts on Facebook or Google, create new accounts on public XMPP servers(including via Tor), or even connect to your own server for extra security.



Chat with anyone on X in a private, focused space built for conversation. No ads. No tracking. Fully end-to-end encrypted.



Off-the-Record (OTR) Messaging allows you to have private conversations over any instant messaging (MSN,Gtalk, Facebook and so on) by providing encryption, authentication, deniability, perfect forward...



Native Matrix desktop chat client with end-to-end encryption, voice and video calls, file sharing, custom emoji, notifications, multi-theme support, and room management.







Bitmessage is a P2P communications protocol used to send encrypted messages to another person or to many subscribers. It is decentralized and trustless, meaning that you need-not inherently trust any entities like root certificate authorities.







Speek! is the first messenger that is anonymous and censorship-resistant by design. Speek! messenger encrypts all messages and is secure, private and decentralized.




Bastyon is a revolutionary anti-censorship decentralized publishing and social platform voted to freedom of speech. Based on the blockchain technology, it runs on a set of computers around the world, not controlled by any single entity.






Protect your communication in transit and on your phone. Silence (formerly SMSSecure) is a full replacement for the default text messaging application: all messages are encrypted locally and messages to other Silence users are encrypted over the air.






Whatsie is a native Linux desktop wrapper for WhatsApp Web, built on Qt and QtWebEngine. It brings WhatsApp out of the browser tab and into a proper desktop application with system integration, privacy controls, and customization options unavailable in a plain browser.




White Noise aims to be the most secure private chat app on Nostr, with a focus on privacy and security. Under the hood, it uses the Messaging Layer Security (MLS) protocol to manage group communications in a highly secure way.



Plus Messenger is an messaging app that uses Telegram 's API. Plus Messenger has all of Telegram's features plus themes. Plus Messenger is free for android devices.



Open-source, privacy-first, with a non-custodial multichain wallet, a built-in AI assistant and Agent Marketplace, escrow payments, and a trusted reputation — all inside your chats.



Connect anonymously and securely worldwide with advanced filters. Enjoy video calls, text, and voice chats without registration. An Omegle alternative.


TeleGuard is the data-secure messenger from Swisscows. TeleGuard encrypts every message and all telephone calls with encryption algorithm currently available: SALSA 20. TeleGuard servers are located in Switzerland, they are not subject to the data protection laws of the EU /...



VeilidChat is a 1-to-1, person-to-person text only chat application which serves as a technology demonstration for the Veilid application development framework. All communication is end to end encrypted, authenticated, private routed, and peer-to-peer. It's currently in early beta.



Open source encrypted group-chat platform offering privacy, customizable interface, Rust-powered speed, minimal data storage, and community-driven contributions.

Android keyboard for secure E2EE communication through the signal protocol in any messenger. Communicate securely and independent, regardless of the legal situation or whether messengers use E2EE.




Quantum-resistant encrypted messaging, video/audio calls, and file transfers in the browser with optional registration and no downloads required.


