Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad




Librem Chat is described as 'End-to-end encrypted chat, VOIP, and video calling used by millions of people' and is a Video Calling app in the social & communications category. There are more than 100 alternatives to Librem Chat for a variety of platforms, including Android, Windows, Mac, iPhone and Linux apps. The best Librem Chat alternative is Signal, which is both free and Open Source. Other great apps like Librem Chat are Telegram, Element, Discord and Matrix.




Kik is way more than just messaging. It’s the easiest way to connect with your friends, stay in the loop, and explore – all through chat. No phone numbers, just pick a username.




Spreed is the worldwide unified web conferencing service offering integrated web and telephone conferencing. It is based on Flash Player. Free service includes 3 attendees and max 1.5h meetings. Single events or monthly service can be purchased.

Unlimited public or private chat rooms with full search, GitHub-based authentication, file and code sharing, flexible integrations with popular developer tools, admin controls, guest access, multi-platform support, data export, and ad-free collaboration spaces.


Campfire is an installable, self-hosted group chat system. Easily invite people. Make rooms. @mentions, DMs, and mobile support. The basics done right. And since you get the code and host it yourself, you can customize it however you’d like for your own use.



A true P2P phone application for voice and video calls. No Internet access needed, no registration, not advertisment or calling back "home". Scan each others QR-Code and call each other. This works in over local networks such as community and company networks or at...




Kaidan is a simple, user-friendly Jabber/XMPP client providing a modern user interface using Kirigami and QtQuick. The back-end of Kaidan is written in C++ using the QXmpp XMPP client library and Qt 5.

One app for all your messaging.
WhatsApp, Messenger, Telegram, Skype, Zoom, Google Hangouts, Gmail, Slack, Facebook, Facebook Pages, Instagram, Twitter, Outlook, SnapMap, WeChat, LinkedIn, HipChat, and ChatWork.












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).






