Skype An instant messaging app that provides online text message and video chat services. Freemium Mac Windows Linux Web Android ... iPhone Blackberry Chrome OS Windows S Android Tablet BSD Windows Phone iPad Apple Watch Android Wear PortableApps.com Share your screen Video calling Exchange Integration IFTTT integration ... Microsoft Office integration Video calling Voice Call Add a feature 2361 Like
Pidgin Pidgin is an easy to use, multi-protocol chat client client used by millions. Connect to AIM, MSN, Yahoo, XMPP, and more chat networks all at once. It has built-in... Free Open Source Mac OS X Windows Linux BSD PortableApps.com ... Xfce Multiple protocols Multiple protocols support Extensible by Plugins/Extensions Supports XMPP ... Multiple languages Multiple Account support Multiple chat protocols Portable Video calling Voice Call Add a feature 1434 Like
Jitsi Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM... Free Open Source Mac OS X Windows Linux Web Android ... BSD End-to-end encryption Group chat iPhone/iPod sync Multiple protocols ... Multiple Account support OTR Video calling WebRTC Add a feature 271 Like
Rambox Free, open source and cross platform messaging and emailing app that combines common web applications into one. Free Open Source Mac OS X Windows Linux Multiple protocols Configurable Multiple Account support Portable ... Skype integration Slack integration Add a feature 67 Like
Trillian Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between all of them! We think conversation... Freemium Mac OS X Windows Linux Web Android ... iPhone Blackberry iPad Facebook integration Multiple protocols POP3 Support Team Collaboration Add a feature 269 Like
ChatSecure ChatSecure is a free and open source messaging app that features OTR encryption over XMPP. Free Open Source iPhone iPad Encrypted chat Integrated File Sharing OTR Add a feature 55 Like
Adium Adium is a free and open source instant messaging application for Mac OS X, written using Mac OS Xs Cocoa API, released under the GNU GPL and developed by the Adium... Free Open Source Mac OS X Customizable Multiple languages Multiple protocols OTR ... Tabbed interface Support for Themes Add a feature 329 Like
Miranda IM Miranda IM is the smaller, faster, easier instant messenger with support for multiple protocols. Designed from the ground-up to be resource efficient while still... Free Open Source Windows PortableApps.com Multiple protocols Portable Add a feature 223 Like
Gajim The goal of Gajim is to provide a full featured and easy to use Jabber client. Gajim works nicely with GNOME, but does not require it to run. It is released under the... Free Open Source Mac OS X Windows Linux BSD Xfce Encrypted chat Group chat Multiple languages OTR ... Supports XMPP Tabbed interface Video calling Add a feature 51 Like
Psi Psi is an instant messaging application for Windows, Linux, and Mac OS X that connects to the free, open XMPP network. Localized versions of Psi are available in... Free Open Source Mac OS X Windows Linux BSD No features added Add a feature 77 Like
Yahoo! Messenger Stay in touch with your friends and family while sharing favorite photos using one of the most popular instant messaging applications. Free Web Android iPhone Blackberry Video calling Voice Call Add a feature 89 Like
YakYak What does it do: * Send/receive chat messages * Create/change conversations (rename, add people) * Leave/delete conversation * Notifications * ... Free Open Source Mac OS X Windows Linux Hangouts Portable Add a feature 17 Like
IM+ Chat everywhere! IM+ is the most widely used mobile IM app! Connect all-in-one to MSN, Yahoo!, Google Talk, AIM, Jabber, ICQ, Facebook, MySpace and Twitter on ALL... Freemium Web Windows Mobile Android iPhone Java Mobile ... S60 HP webOS Blackberry Android Tablet Windows Phone iPad Kindle Fire Multiple Account support Multiple protocols support Add a feature 102 Like
Disa Disa is your new messaging hub. Conversations from different services can seamlessly be joined together, or disbanded within seconds. Free Android Android Tablet Kindle Fire Extensible by Plugins/Extensions Texting Unified messaging Add a feature 18 Like
Messenger for Desktop A simple & beautiful app for Facebook Messenger. Chat without distractions on any Operating System. Free Open Source Mac OS X Windows Linux No features added Add a feature 8 Like Bundleware Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
