VideoMeeting is a free and open source video conference solution built to have video calls and chats using your web browser. It is a pure web application based on WebRTC that can provide communication features within your web browser.

WWChat is described as 'Indie Chat / Messenger for Android' and is an app in the social & communications category. There are more than 100 alternatives to WWChat for a variety of platforms, including Android, iPhone, Windows, iPad and Android Tablet apps. The best WWChat alternative is Signal, which is both free and Open Source. Other great apps like WWChat are Telegram, Element, Tox and WhatsApp.
VideoMeeting is a free and open source video conference solution built to have video calls and chats using your web browser. It is a pure web application based on WebRTC that can provide communication features within your web browser.

KakaoTalk is a phone number based messenger service that allows users anywhere in the world to chat one-to-one or in a group for free. (no SMS service)




yaxim Feb 7th, 2013 yaxim (Yet Another XMPP Instant Messenger) is a Jabber/XMPP client with open source (GPLv2). Why pay for text messages if you …



Softphone for VoIP, CAPI und TAPI. This application enables voice connections to landline, cellular network and VoIP. Phoner can be used as softphone on stationary and mobilecomputer devices attached to anlogue or digital (ISDN) subscriber lines and as SIP client.
PhonerLite is.


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 to make free PC to PC video and voice calls, and to integrate all your IM contacts...

Small program mainly aimed to provide a simple user interface for making VoIP calls with Asterisk PBX (an open source VoIP PBX).
Unlimited free calls anywhere in North America!
KNCTR gives you the ability to stay connected with the people that matter most. Call any mobile or landline phone number across North America, absolutely FREE! All you need is a headset plugged into your computer, an Internet conne.
QQ is a widely used Chinese instant messaging service developed by Tencent, offering chat, voice, and video communication. It integrates social networking features like groups, forums, and customizable avatars to enhance user interaction.




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 X and Windows 98/2000/XP).



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, voicemails—all in one place.



Instant messaging with voice and video options, live group video chat for up to 10 participants, public and private rooms, interest communities, mobile and desktop access, user-created rooms, moderation tools, and options for anonymous participation.



