Hi,

 How to use Google chat like Messenger in sharepoint 2013.

Thanks,

There are many answers available within this forum itself.

https://social.msdn.microsoft.com/Forums/office/en-US/94d15c50-bd19-4648-940a-4e003369520f/sharepoint-messenger?forum=sharepointgenerallegacy

https://social.msdn.microsoft.com/Forums/office/en-US/c4c0618c-5147-4298-a65e-b3f1629442eb/instant-messaging-tools-for-sharepoint-2013?forum=sharepointdevelopment

https://social.msdn.microsoft.com/Forums/office/en-US/5bf4262a-9445-4278-afd9-1c4d789e6bd6/sharepoint-messenger?forum=sharepointdevelopmentprevious

Hi,

If you want to use chat feature in SharePoint 2013, here is a free app for your reference:

https://store.office.com/chat-web-part-touch-WA104023738.aspx?assetid=WA104023738

Or a solution from codeplex for your reference:

http://sharepointmessenger.codeplex.com/

Best Regards,

Dennis