A cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS.
A messaging app with a focus on speed and security.
Lets you send free messages as well as make free calls to other Viber users, on any device and network, in any country!
Quality voice communication via the Internet.
Connect with your favourite people.
Skype keeps the world talking. Call, message and share whatever you want for free.
All-in-one voice and text chat for gamers that’s free, secure, and works on both your desktop and phone.
Exchange free instant messages with friends whenever and wherever with one-on-one and group chats.
A chat program which lets you log in to accounts on multiple chat networks simultaneously.
An open source, peer to peer, LAN messenger.
All your chats in one app
An easy-to-use LAN messaging application for safe, secure and effective intra-office communication.
A free instant messaging application for communication over a local network.
A free messaging app for WhatsApp, Facebook Messenger, Telegram, Slack and more.
A popular Internet Relay Chat client used by millions of people, and thousands of organizations, to communicate, share, play and work with each other on IRC networks around the world.
An end-to-end encrypted messenger that minimises sensitive metadata, designed and built for people who want absolute privacy and freedom from any form of surveillance.
Secure and independent communication, connected via Matrix.
A fully-featured XMPP client.
A pop up style LAN Messenger.
Communicate freely with people over the internet, with voice, video, and text instant messaging.
An IRC client with multiserver support and a customizable interface.
The secure Slack/WhatsApp alternative for organizations handling regulated/sensitive data.
Free, Open Source and Cross Platform messaging and emailing app that combines common web applications into one.
Chat with other Trillian users or those on Facebook, Google, AIM, ICQ, XMPP, Yahoo!, Twitter, and more.
An open source SoftPhone, Video Conferencing and Instant Messenger application over the Internet.
One shared space for all your cross-functional work.