The most secure messaging app in the world.
- Instant Messenger
- Freemium • Open Source
- Android
- iPhone
- Android Tablet
- iPad
Snikket is an ambitious project to build a new kind of XMPP-based messaging platform.
- Instant Messenger
- Free • Open Source
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- F-Droid
- Docker
Secure communication for individuals, teams, and large organizations.
- Video Calling App
- Freemium • Proprietary
- Mac
- Windows
- Linux
- Android
- iPhone
- Android Tablet
- iPad
- Snapcraft
Thirdlane® Connect is a versatile collaboration tool that combines messaging, voice, video, and app integration into a cohesive and efficient experience on any platform.
- Group Chat App
- Paid • Proprietary
- Mac
- Windows
- Linux
- Online
- Android
- iPad
- iPhone
- Android Tablet
+2Free open source Electron based multi instant messaging (IM) client.
Combine all your IM applications (or whatever you want) in a single browser (Electron) window.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
Experience unparalleled privacy with customizable features and encrypted messages in a fast and responsive client independent from the original.
- Discord Mod
- Free • Open Source
- Mac
- Windows
- Linux
- Flathub
- Flatpak
2x your productivity with Struct, a brand-new real-time chat platform designed from the ground up around threads, feeds and AI.
- Instant Messenger
- Paid • Proprietary
- Mac
- Windows
- Linux
- Slack
WeeChat is a free chat client, fast and light, designed for many operating systems. It is highly customizable and extensible with scripts.
- IRC Client
- Free • Open Source
- Mac
- Linux
- BSD
- Haiku
- Xfce
SchildiChat is a Matrix client based on Element with a more traditional instant messaging experience.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- Flathub
- F-Droid
- Flatpak
Speek! is the first messenger that is anonymous and censorship-resistant by design. Speek! messenger encrypts all messages and is secure, private and decentralized.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Android
+1Hamsket is a fork of Rambox that was started when Rambox moved from being totally free to a "freemium" model.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
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.
- Instant Messenger
- Free • Open Source
- iPhone
- iPad
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...
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Java Mobile
XMPP, or Extensible Messaging and Presence Protocol, is an open standard for instant messaging and real-time communication, allowing for message exchanges between any two entities on the Internet. It's known for its decentralized and extensible nature.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Windows Phone
- Self-Hosted
WeChat is a complete mobile communication and private social networking app. Free, cross-platform, and full-featured, WeChat is the best way to keep in touch with everyone you care about.
- Instant Messenger
- Freemium • Proprietary
- Mac
- Windows
- Android
- iPhone
- Blackberry
- Android Tablet
- Windows Phone
- iPad
- Apple Watch
- Linux
- Flathub