Shout 
Try the Demo
What is it? Shout is a web IRC client that you host on your own server.
What features does it have?
- Multiple user support
- Stays connected even when you close the browser
- Connect from multiple devices at once
- Responsive layout — works well on your smartphone
- .. and more!
Install
sudo npm install -g shout
Usage
When the install is complete, go ahead and run this in your terminal:
shout --help
For more information, read the documentation.
Official forks
Check out The Lounge which is an actively maintained fork: https://github.com/thelounge
License
Available under the MIT License.