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.
Exchange free instant messages with friends whenever and wherever with one-on-one and group chats.
A free instant messaging application for communication over a local network.
A pop up style LAN Messenger.
An easy-to-use LAN messaging application for safe, secure and effective intra-office communication.
A free messaging app for WhatsApp, Facebook Messenger, Telegram, Slack and more.
Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
All-in-one voice and text chat for gamers that’s free, secure, and works on both your desktop and phone.
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.
A free push-to-talk application for smartphones, tablets, and PCs.
An open source, peer to peer, LAN messenger.
An open source SoftPhone, Video Conferencing and Instant Messenger application over the Internet.
The secure Slack/WhatsApp alternative for organizations handling regulated/sensitive data.
A chat program which lets you log in to accounts on multiple chat networks simultaneously.
Free, Open Source and Cross Platform messaging and emailing app that combines common web applications into one.
One messenger for Internet and LAN chat with end-to-end encryption.
Chat with other Trillian users or those on Facebook, Google, AIM, ICQ, XMPP, Yahoo!, Twitter, and more.
A free encrypted messaging app that allows users to send and receive secure messages, documents, pictures, videos and audio files.