I released ShoutMatch some time ago but just now realized that I never made a post about it.
ShoutMatch fits in your Twitch chat window and show you the most popular phrases being said in chat in real-time.
Check it out here:
https://www.brutefarce.net/shoutmatch
Download for Firefox:
https://addons.mozilla.org/en-US/firefox/addon/shoutmatch/
Download for Chrome:
https://chrome.google.com/webstore/detail/shoutmatch/mnfckoipoonlebfjfonlmpepbgifmnhm