Converse.js is an open source chat application that can connect to any XMPP/Jabber server (like Google Talk, Skype, etc.). It sits in the footer of web pages just like Facebook-chat and has support for one-to-one or multi-user conversations. Contact requests can be accepted/declined, statuses can be set (online, away..) and there are “typing” notifications to inform the “listening” users.
4. JS Hint
nodejs and supports all standard SQL queries (can be customized to support non-standard queries).
6. Responsive Nav