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Stack Overflow-like Open Source Q&A Systems for Download

Posted · Category: GPL License, Social

Few days ago, we have mentioned Qhub, which is a simple way to create a Q&A website. However, hosted version is only available to us only. How about a Q&A system that is open source and also let us install on our own server? Our readers have pointed out the following Open Source Q&A Systems.

OSQA is an Open Source Q&A System written using Django. Users can ask and answer questions, comment and vote for the questions of others and their answers. Both questions and answers can be revised and improved. Questions can be tagged with the relevant keywords to simplify future access and organize the accumulated material. OSQA can be downloaded from the project’s GitHub repository at http://github.com/rickross/osqa. It is under GNU General Public License.


Shapado is another Stack Overflow-like app written in Ruby on Rails, mongomapper and mongodb. It is available under the GNU Affero General Public License. Shapado can be downloaded from Gitorious at http://gitorious.org/shapado.


Requirements: Django or Ruby on Rails Framework
OSQA: http://osqa.net/
Shapado: http://shapado.com/
License: GPL License

  • Here’s another new one which is very easy to install and use. http://www.question2answer.org/

  • Werner

    Interesting post.

    Are there any known open source java implementations? I did not find any.

  • Thanks SO MUCH for noticing OSQA. We really appreciate it, and we hope that this will help bring some folks to OSQA as a useful, open source solution to power a Q&A community.

    OSQA really owes a lot to Mike Chen and Sailing Cai for their work on the Chinese CNProg.com that formed OSQA’s original foundation. Although the codebase is now significantly reorganized and is growing, it would not have been possible without their work and CNProg.

    StackExchange site owners may be interested to hear that we are currently working on a direct importer to allow you to load an OSQA site from your StackExchange export dump files. This should make it a lot easier for those who wish to migrate.

    Thanks again!

  • Evgeny

    Would like to mention for the record of fairness that OSQA based on and English port of CNPROG. CNPROG was probably the first re-implementation of SO that went public (created by two Chinese programmers – Mike Chen and Sailing Cai).

  • @rickross seems like shapado is able to load StackExchange export dump files, perhaps you can steal their code :P

  • Andre

    sad, the shapado review was too short, even though it has way more features than osqa

  • Thanks a lot, I was looking for this for a while now,
    Since I am php guy, I checked http://www.question2answer.org/ and I think I’ll be using it.

    Keep up the great work ;)

  • kpartz

    I agree that http://shapado.com is much more advanced than osqa.net, it has better features and is more customizable. Plus the hosting service is very powerful and there’s a freemium. It’s also very actively developped. Anyway, +1 for shapado from me.

  • http://ra-ajax.org/stacked is another Open Source version written in ASP.NET. Code can be found at http://code.google.com/p/ra-brix/

    Though the thing is highly BETA still, it’s a “port” of Stacked, which is another version [also created by my company] which can be found here; http://code.google.com/p/stacked/

  • Thanks for the tip, I will use this

  • nick

    There’s a PHP clone of S.O. called Qwench.
    source on gihub, but not updated lately.

  • Here is some friendly competition for OSQA:

    Askbot – another derivative of CNPROG.

    I’ve decided to start this project because I thought that it just makes sense for me after spending eight months of my free time improving the software and translating it in the first place :).

    Please check it out. Perhaps, if you like Django and Python and would like to learn some cool javascript – you might be interested joining the effort.



  • Tim

    Where can I download QHub to install on my own server?

  • Ray Cheung

    @ Tim,

    There is hosted version available only I am afraid. So you are not able to install it on your own server at the moment. Please check our other alternatives we mentioned in the post. ;)

  • thanks for shareing

  • This is a good idea. It would look good on fireviews.com too

  • Any site which is using ASP.NET? I’ve checked http://ra-ajax.org/stacked it looks buggy and slow…


    hoho, I wonder if ASP NET people posting here realize how much laughter they trigger??? And then this totally failed try to light some spot on the company!!! O my god! FAIL!

  • Lars Rorst

    A great one in php/MongoDB is LampCMS
    example http://support.lampcms.com

  • James

    You also have Answerbase (www.answerbase.com) as a solution that is available, its on a SaaS model and powers communities for Edmunds.com, Adobe, and Angies List to name a few.

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