LAN Messenger

LAN Messenger is a p2p chat application for intranet communication and does not require a server. A variety of handy features are supported including notifications...

• Discontinued The project seems to be no longer developed since February 2017. Last version, 1.2.37, released in November 2016, can be still downloaded from GitHub. It is reportedly not working on Ubuntu 18.04

Free Open Source Mac Windows Linux PortableApps.com

BeeBEEP

BeeBEEP is a secure network chat. You can talk and send files with all your friends inside a local area network such of an office, home or internet cafe without a...

Free Open Source Mac Windows Linux

Feem

"Hi. My Name is Feem. I happen to be the best local file transfer app on Earth." Feem works like Bluetooth; but 50X faster. Feem sends files instantly from...

Freemium Mac Windows Linux Android iPhone ... Android Tablet Windows Phone iPad

KouChat

KouChat is a simple serverless chat client for local area networks (wifi). With KouChat you can communicate with other KouChat users, without configuring a server, or...

• network chat works on all platforms : windows , mac , linux , android , ios Skyrmion • Mar 2018 Disagree   Agree

Free Open Source Mac Windows Linux Android Android Tablet

Bopup IM Suite

Organize secure messaging system and communicate instantly via self-hosted IM server.

Commercial $ $ $ Windows Android

BizChat

BizChat is an enterprise collaboration app that allows public & private chat, access employee directory, get news feed and set your to-do-list. It’s a great tool to...

Freemium Web Android iPhone

Gyach

Gyach is a GTK+ based Yahoo! Chat client.

• Discontinued The project seems to be no longer developed. Last version, v0.9.8, released in July 2004, can be still downloaded from the official website.

Free Open Source Linux BSD

IBM Sametime

IBM Sametime instant messaging products integrate real-time social communications into your business environment, providing a unified user experience through instant...

Commercial Mac Windows Linux Android iPhone ... Android Tablet iPad

4talk Messenger

4talk IM service is a complete IM service for communicating with your phone contacts using your PC in the office or at home. You can transfer files and messages and...

Freemium Mac Windows Web Android iPhone

Secure Instant Messaging

Secure Instant Messaging has following features: - Secure Messaging with private\public keys - RSA decryption/encryption - Generate key pair and save keys as files ...

Commercial $ $ $ Windows Windows Mobile Windows S