Hi all!
We all love to participate in programming challenges, don't we? The only problem is that we are often not aware about the numerous online programming challenges that happen regularly and only participate in the few challenges that are popular. So, I and Chirrag Nangia felt the need for a place where we could see all the programming challenges from multiple platforms. Thus, Challenge Hunt happened! Challenge Hunt is a chrome extension which shows you all the active and upcoming challenges from 25 platforms including codechef, codeforces, topcoder, hackerrank and the likes.
The code for the app is open source. If you like it, don't forget to star it.
https://github.com/ChallengeHunt/challengehunt
EDIT[21/04/2015]:
We have now added the support to save upcoming challenge in your Google Calendar. Just click on the bell icon in the upcoming tab for the challenge you want to save.
You can install the extension from here: http://bitly.com/1E3T9sQ
Blog post about Challenge Hunt: http://bit.ly/1IBxjy4