This is an alphabetical list of defunct instant messaging platforms.
Brand Developer(s) Launched Discontinued Lifespan (years) AIM AOL 1997 201720 aMSN Microsoft 2002 201210 BBM BlackBerry Ltd. 2005 201914 BBMe for Personal Use BlackBerry Ltd. 2019 20245 Beeper Mini Automattic 2023 20241 ChatON Samsung Electronics 2011 20154 Empathy Guillaume Desmottes, Xavier Claessens 2007 201710 Fetion China Mobile 2007 202215 FireChat Open Garden 2014 20184 Gizmo5 Google 2005 20116 Google Allo Google 2016 20193 Google Hangouts Google 2013 20229 Guilded Roblox Corporation 2017 20258 Hike Messenger Hike Private Ltd. 2012 20219 HipChat Atlassian 2009 20178 iChat Apple 2002 201210 ICQ Mirabilis 1996 202428 Instantbird Florian Quèze 2007 20136 Meebo Google 2005 20127 MessageMe Yahoo! 2012 20143 Microsoft Kaizala Microsoft 2017 20236 Microsoft Lync Microsoft 2010 20155 Microsoft Messenger service Microsoft 1999 201415 Microsoft Office Communicator Microsoft 2007 20103 MSN Messenger Microsoft 1999 20056 Mxit Mxit Ltd. 2005 201611 MySpaceIM Myspace 2006 20092 Odigo Messenger Comverse Technology 1999 20045 ooVoo Krush Technologies, LLC 2007 201710 PowWow Tribal Voice 1994 20017 QIP RBK Group 2005 20127 Skype Microsoft 2003 202522 Skype for Business Microsoft 2015 20215 Skype Qik Microsoft 2014 20162 Stride Atlassian 2017 20192 Surespot Surespot LLC 2012 202210 Upptalk Simyo 2010 20177 Windows Live Messenger Microsoft 2005 20127 Windows Messenger Microsoft 2001 20087 Windows Messenger service Microsoft Xfire Xfire, Inc. 2003 201512 Yahoo! Livetext Yahoo! 2015 20161 Yahoo! Messenger Yahoo! 1998 201820