Jira may be extremely sluggish and require a large amount of memory on the client side.
HexChat - HexChat is a fork of XChat with bug fixes and new features.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
irssi - Irssi is a terminal based IRC client for UNIX systems.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Kiwi IRC - A hand-crafted IRC client that you can enjoy. Designed to be used easily and freely.
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.