WhatsApp Messenger

Trillian is a proprietary multiprotocol instant messaging application for Windows, Mac OS X, Android, iOS, BlackBerry OS, and the Web, created by Cerulean Studios. It can connect to multiple IM …

Viber is a mobile application that lets you make free phone calls and send text messages to anyone who also has the application installed. You can call or text any …

Nimbuzz offers limited-availablility-free-calls- and limited-availability-free-text messaging for users via 3G and WiFi. Calls to other nimbuzz users are free. PAY to call mobile or landline phones for as...

Jitsi (previously SIP Communicator) is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, AIM/ICQ, Windows Live, Yahoo! and many other useful features. Jitsi is...

Yahoo! Messenger is an instant messaging client developed by Yahoo! inc. for real-time communication of its users. It provides text chat, file transfer up to 2GB. conversations with audio and …

Psi is an instant messaging application for Windows, Linux, and Mac OS X that connects to the free, open Jabber IM network (also known as XMPP). Localized versions of Psi …

LINE is a Japanese proprietary application for instant messaging on smartphones and PCs. Line users exchange text messages, graphics, video and audio media, make free VoIP calls, and hold free …

Instantbird is an instant messaging client based on Mozilla XULRunner and the open source library libpurple created by the software developers of Pidgin. Instantbird is free software available under the …

ICQ is one of the oldest instant messengers. First developed by the Israeli company Mirabilis, sold to AOL, sold again and currenly owned by the Russian "mail.ru" group (known for …

Combining voice calls, video calls and Instant Messaging in a simple interface, CounterPath's X-Lite helps you seamlessly transition from a traditional phone environment into the world of Voice over IP. …

QuteCom is a community of enthusiasts and developers, creating free software products related to communication over IP. The flagship product of the QuteCom project is a softphone which allows you …

Messages are synced in realtime and available via any of your devices. But there’s more, sending texts, pics and any files to other mysms users are free!

Telegram - это мессенджер, который позволяет пользователям обмениваться сообщениями, фотографиями, видеозаписями, аудиозаписями и другими файлами. Он был создан Павлом Дуровым и его братом Николаем в 2013 году. Одной из основных …

Tencent QQ, generally referred to as QQ, is the most popular free instant messaging computer program in Mainland China, and has over 856.2 million users. In April 2010, QQ.com ranked …

Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with any IP-based communications systems and infrastructure. Zoiper …

Spaz is a Twitter client for users who value free, open-source software, attractive design, and customizability

Tkabber is a Free and Open Source client for the Jabber instant messaging system. Its writen in Tcl/Tk, and works on many platforms (tested on Linux, FreeBSD, NetBSD, Solaris, MacOS …

Meebo for the Desktop. It uses Adobe® AIR™ to place meebo home page on the desktop in its own window.

Logitech Vid HD is free for anyone with any Logitech webcam—and any other manufacturer’s webcam—, whether that webcam is brand new, or one you’ve had for a while. As Logitech®, …

Pinger lets you text and talk free with the people you care about most, anywhere on the planet. Tap a picture and you'll see all of your communications—texts, pics, calls, …

Allegedly "cheap" phone calls with Jumblo. WARNING: expect to have payments disappear with zero recourse and have "free" minutes widely unavailable like any other betamax clone scam.

Small program mainly aimed to provide a simple user interface for making VoIP calls with Asterisk PBX (an open source VoIP PBX).

Messenger:mac (or Microsoft Messenger for Mac) is Microsofts version of the popular Windows Live Messenger for the Mac platform.

Qnext unifies communication, broadcasting & sharing. Universal Instant Messenger (MSN, Yahoo!, AIM, ICQ, Jabber, iChat & IRC), Multi Audio & Video Conferencing, File Transfer, File & Photo...

Manage all your existing IM and social network accounts with only one easy-to-use application. Free video calls and video conferences as well as goober Premium VoIP, and much more included! …