What is IRCCloud?
IRCCloud is a modern, sleek, always-connected
IRC client that you use in your browser.
You’ll always be connected to
IRC, even if your browser is closed and your computer is offline. When you come back to your computer, you’ll be able to easily see and respond to new messages since the last time you checked.
You can use IRCCloud from multiple computers—a record of messages you’ve seen and responded to are automatically kept in sync, so you get a seamless experience every time.
https://irccloud.com/about