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.

  • 6_medium

    What Does this Error Mean?

    whatdoesthiserrormean is a search engine for error messages and their solutions and a way to get help solving your errors. Check out our screencast. If you use Rails or Merb, install our plugin/gem to use us during your development process.

    Created by giraffesoft, danielharan, webmat, francois

  • 56_medium


    Beer is good. People like to celebrate with beer. People like to buy buddies beer. What if buying your friend a beer were as easy as clicking a button on the bar's website, facebook, twitter, etc?

    Created by amerine, jsullivan, timo3377, timmyc

  • 54_medium

    Movie Night

    Movie Night is a shared movie watching experience. Invite as many people as you want to view a movie with you. Group chat and popup trivia add to the movie watching experience.

    Created by jro, msepcot, manischewitzbacon

  • 57_medium


    Workrz lets you manage & connect to all of your casual employees in one super easy-to-use place.

    Created by ADO, stackhousehouse, tombryan, batau

  • 49_medium


    Feeling like you've missed something when you were offline? Tired of reading the whole text before you follow the link because of that clueless bit.ly goo.gl tl.gd blabla link-useful-but-crappy shorteners? Do you scream for help to filter all the...

    Created by victorcoder, oriolconesa, xavib

  • 51_medium


    Clients and customers love feedback. And even with all the tools we use to keep in touch with them like Basecamp or Agilezen, they still email us to ask, "What's the status of those projects again?" In moments like that, they don't need the nitty gr...

    Created by jonathanpenn, joefiorini, joshwalsh,

  • 52_medium

    Endless Poem

    Poem creation is fun. Anonymous collaborative poem creation is much more fun. And this is exactly what this service does. No registration is needed to participate: everybody is welcomed to create poem lines and suggest new variants (thus starting ne...

    Created by alexandrz, arsenische, ,

  • 53_medium


    BlopBlop lets you create polls to compare stuff : images, files, links, youtube videos, places on maps, dates, source code, texts, ... No signup required. Share with Facebook, Twitter or by email!

    Created by aurels, verlinden, fstephany

  • 58_medium

    Oh, Kanban!

    An interactive kanban card wall to for managing units of work on a sprint by sprint basis.

    Created by jwpage, Abica

  • 45_medium

    Space Shippers

    A casual game putting the player in the boss-chair of a newly started shipping company. Space-shipping, that is.

    Created by koppen, RSpace, rud