A spin-off of the popular Jabber/XMPP client Conversations with automatic contact discovery.
- Instant Messenger
- Free • Open Source
- Android
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.
- Instant Messenger
- Free • Open Source
- Android
Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).
- Instant Messenger
- Free • Open Source
- Online
- Android
- iPhone
- Self-Hosted
- Software as a Service (SaaS)
+4VeilidChat 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.
- Instant Messenger
- Free • Open Source
- Android
- iPhone
A Matrix client where you can enjoy the conversation using simple, elegant and secure interface protected by e2ee with the power of open source.
- Group Chat App
- Free • Open Source
- Mac
- Windows
- Linux
- Online
- Arch Linux
- Flathub
- Flatpak
+1Create your own free and unlimited private social networks.
- Social Network
- Freemium • Proprietary
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Software as a Service (SaaS)
+3The smarter way to work Ayoa is an all-in-one online whiteboard where you can brainstorm ideas, work together and get things done.
- Todo List Manager
- Paid • Proprietary
- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- iPad
+3Cwtch - (a Welsh word roughly translating to “a hug that creates a safe place”) is a decentralized, privacy-preserving, multi-party messaging protocol that can be used to build metadata resistant applications.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Android
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 /...
- Instant Messenger
- Free Personal • Proprietary
- Mac
- Windows
- Linux
- Android
- iPhone
- Snapcraft
Miranda New Generation is a successor of a popular multi-protocol instant messaging client for Windows - Miranda IM . Very light on system resources and extremely fast.
- Instant Messenger
- Free • Open Source
- Windows
- PortableApps.com
Feature rich WhatsApp web client based on Qt WebEngine for Linux Desktop
Whatsie Key features
Light and Dark Themes with automatic switching Customized Notifications & Native Notifications Keyboard Shortcuts BuiltIn download manager Mute Audio, Disable N.
- Instant Messenger
- Free • Open Source
- Linux
The Telegram client optimized for the Windows 10 platform, built by the community for the community.
- Instant Messenger
- Free • Open Source
- Windows
- Windows Mobile
- Windows Phone
- Xbox
+2µTox is the lightweight client with minimal dependencies; it not only looks pretty, it runs fast! µTox is available for Windows, OS X, and Linux (Android support is experimental), with full support for chat, file transfers, audio/video calling, and desktop sharing...
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Android
- BSD
Technitium Mesh is a secure, anonymous, peer-to-peer (p2p), open source instant messenger designed to provide end-to-end encryption. Primary aim of developing this instant messenger is to provide privacy which is achieved using cryptography and anonymity using Tor network.
- Instant Messenger
- Free • Open Source
- Windows
The motivation behind the project is to provide a native desktop app for Matrix that feels more like a mainstream chat app (Element, Telegram etc) and less like an IRC client.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Flathub
+3