Alternatives to Question2Answer for all platforms with any license

  • Stack Exchange icon

    Stack Exchange

    Stack Exchange is a fast-growing network of 84 [and counting] question and answer sites on diverse topics from software programming to...

    Free Web / Cloud Android iPhone Android Tablet iPad

  • AskBot icon


    Askbot is a Q&A system, like StackOverflow, Yahoo Answers and some others. Askbot is based on code of CNPROG, originally created...

    Freemium Web / Cloud Self-Hosted Python Django

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    OSQA is the free, open source Q&A system you've been waiting for. Your OSQA site is more than just an FAQ page, it is a...

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    Solace is a fully open-sourced multilingual support and knowledge exchange platform written in Python.

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  • Coordino

    Coordino allows you to create a question and answer system for you and your users to enjoy. Whether you are looking to create a...

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    Shapado is a questions and answers site for your enterprise or community, your “knowledge base on the cloud”. It makes sure questions...

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    Answers is the place to go to ask questions and receive answers from the community at large on any topic. Connect with people who...

    Free iPhone

  • Glisser icon


    Glisser makes presentations interactive, by combining them with live audience Q&A and polls.

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  • AnswerCart icon


    AnswerCart provide a community platform to the businesses which can be integrated with websites or mobile apps. Using community, users...

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  • Askalot

    Askalot is a next generation CQA (Community Question and Answer) system.

    Open Source Self-Hosted

  • Fixoncloud icon


    Interaction platform for programming enthusiasts, learners, and experts to solve problems. Fast and inexpensive solutions to your...

    Free Windows

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  • LampCMS

    LampCMS is an full-featured Open Source Question and Answers web program written in PHP with deep integration with Facebook, Twitter...

    Open Source MySQL Community Edition Self-Hosted MongoDB PHP

  • Kiunei icon


    Kiunei is a simple, corporate Q&A tool for large events. (Inspired by Google Moderator .)

    Free Mac Windows Linux Android iPhone iPad

  • Eris Solver icon

    Eris Solver

    Free crowdsolver for complex problems. Using the problem tree analysis and an interdisciplinary approach.

    Free Web / Cloud

  • BitAsker icon


    BitAsker is a paid question and answer plateform using bitcoin ... a user can win money by answering a question.

    Free Web / Cloud

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