Rails Rumble is an annual 48-hour web developer challenge. This site is a showcase of some of the many applications that were developed during contests past and present. Only the apps that are still online are listed.

For more news and information, please visit the blog or peep our tweets.

Looking for something specific? Use the filters to search the archive.

  • 23_medium


    hi.im is a social profile that you can use to introduce yourself to the web. Use it on business cards, profiles, email signatures, etc. Your hi.im page will have the top items from your social networks like Twitter, digg, Facebook, Flickr, etc and pe...

    Created by jonathant, andresmax, jfgomez86, bbto

  • 22_medium

    How's My Code?

    A lean and simple code review tool meant for busy software developers.

    Created by foca, oboxodo, nachof, rabble

  • 28_medium


    Like CouchSurfing, but with food

    Created by DefV, jomz, jelle, jeroenj

  • 21_medium


    Lowdown is a collaborative tool for writing and working with Cucumber. If Cucumber lets us describe how software should behave in plain text in a business-readable domain-specific language then Lowdown is the tea party where thinly sliced sandwiches ar...

    Created by wesgarrison, seancribbs, pauld, scottymoon

  • 37_medium


    get alerts (email/sms/im) when new episodes of your favorite tv shows are available

    Created by jcnetdev

  • 19_medium


    Hurl makes HTTP requests. Great for testing APIs! Choose your URL, HTTP method, body, headers and view your request and the response.

    Created by defunkt, leah

  • 36_medium


    LAZEROIDS! Massively multiplayer, peer-to-peer, never-ending game of asteroids. Shoot your friends! Avoid the asteroids!! Name your ship!!! But not in IE!!!!

    Created by huned, visnup, gerad

  • 26_medium


    PeepNote allows the user to import their twitter contacts and keep notes on them, including why they followed them, why they stopped following them, and other notes to help remember the important things about the people you meet online.

    Created by bburridge, pothoven,

  • 25_medium


    Tweet yourself a website! Make a tiny website easily with a couple of public timeline tweets using hashtags.

    Created by yaroslav, shurikp, at

  • 24_medium


    What is Twoups? Often at a conference or event (real or virtual), the participants will engage in conversations over twitter but there might not be concensus over what hash tags to use, or those hashtags in use might not be communicated out to all the...

    Created by JoshReedSchramm, johnmiller, wyattearp