Alternatives to Stack Exchange for the Web with any license

Platforms

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Mobile

Web / Online

Development

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  • Reddit icon

    Reddit

    Reddit is a social news site allowing users to submit articles, vote on them, and engage in discussions. Like other social news websites, Reddit is divided into categories. In addition to being able to vote for and against articles...

    Freemium Web / Cloud Android iPhone Self-Hosted

  • Quora icon

    Quora

    Quora.com is a question/answer service allowing users to pose questions that other users can answer, each question and answer can have comments, each users can write one individual answer and there can be a summary answer. Each user...

    Free Web / Cloud Android iPhone

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  • Slant icon

    Slant

    Slant is a collaboratively edited resource that helps you quickly make decisions. Instead of having to read multiple blog posts or dig through comment threads you can read summarized perspectives on topics with no definitive...

    Free Web / Cloud

  • Question2Answer icon

    Question2Answer

    A Q&A site helps an online community to share knowledge. No matter what your area of interest, people with questions can get super answers fast. Question2Answer is a popular Q&A solution. The Question2Answer Bot has found...

    Open Source Mac Windows Linux Web / Cloud MySQL Community Edition Self-Hosted ... PHP

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  • AskBot icon

    AskBot

    Askbot is a Q&A system, like StackOverflow, Yahoo Answers and some others. Askbot is based on code of CNPROG, originally created by Mike Chen and Sailing Cai and some code written for OSQA. Askbot is open-source and can be...

    Freemium Web / Cloud Self-Hosted Python Django

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  • Steemit icon

    Steemit

    A non-censored social platform where users are incentivized to contribute and curate content. The users decide what is valuable by voting, and content regarded valuable is rewarded with money.

    Open Source Web / Cloud

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  • OSQA icon

    OSQA

    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 full-featured Q&A community. Users earn points and badges for useful participation, and everyone in...

    Open Source Web / Cloud Self-Hosted Python Django

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  • Solace

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

    Open Source Mac Windows Linux Web / Cloud

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    • Discontinued Latest commit on Nov 29, 2009, see https://github.com/Plurk/Solace
  • 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 niche question and answer site for comic book collecting or looking for a knowledge base solution for...

    Open Source Linux Web / Cloud Self-Hosted

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  • Shapado icon

    Shapado

    Shapado is a questions and answers site for your enterprise or community, your “knowledge base on the cloud”. It makes sure questions never get asked twice by making the information flow. Thanks to a powerful search engine, the...

    Freemium Linux Web / Cloud

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  • ZapChain icon

    ZapChain

    ZapChain is a collection of communities where you can earn bitcoin for posting great content and joining discussions.

    Free Web / Cloud

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  • Yahoo! Answers icon

    Yahoo! Answers

    Yahoo! Answers is a way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

    Free Web / Cloud

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  • Unchy icon

    Unchy

    Unchy is an anonymous community where users can submit news, pictures, videos, stories, and more. No account is needed to post, comment, or vote. With thousands of different categories, you can discuss just about anything.

    Free Web / Cloud

  • Allthink icon

    Allthink

    Grow your audience with a custom news community. Users can signup, submit links, like them, and comment. Style the look and feel of your community to match your brand. Use any domain or subdomain you wish for your community. Free and...

    Free Web / Cloud

  • CodeProject icon

    CodeProject

    CodeProject is a community of Software development and Design developers joined together with certain common goals: to learn, to teach and to have fun programming.

    Free Web / Cloud

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  • Shrtct icon

    Shrtct

    Shrtct is a productivity tool for teams, providing in-context communication (chit chat free!) via Shrtct Hashes. It's great for preparing your team, making important decisions, gathering and storing information, planning, debating...

    Free Personal Web / Cloud

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  • QueryHome icon

    QueryHome

    QueryHome is a Knowledge Social Network for people to come together and ask technical doubts and contribute by answering questions, solving doubts and writing articles.

    Open Source Web / Cloud

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  • Boardest icon

    Boardest

    Boardest.com is a forum, question/answer and link sharing service allowing users to ask questions, open discussion threads and share links that other users can comment and contribute.

    Free Web / Cloud

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  • asktopia icon

    asktopia

    asktopia is a global network for business professionals to ask and answer questions about real world problems they need to solve or the “whys” and “hows” of specific business practices and principles. This is not a discussion forum...

    Free Web / Cloud

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  • NALIJ

    Have great conversations with the right people. One forum for all your interests. Post about anything and everything you like! Whether you're an expert or a rookie, you can teach, learn and just chat – all in one place! ...

    Free Web / Cloud

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  • Twincl icon

    Twincl

    Twincl is characterized by forum (including link sharing), Q&A, review and blog sites, using CommonMark as its writing format. Twincl features innovative Markdown editing, topic trees, voting/remarks, selected posts, senior...

    Freemium Web / Cloud

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  • Curositi

    Curositi is an online community of people having a passion for searching, researching, learning new things and acquiring knowledge.

    Free Personal Web / Cloud

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  • Eris Solver icon

    Eris Solver

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

    Free Web / Cloud

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  • BitAsker icon

    BitAsker

    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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  • Experts Exchange icon

    Experts Exchange

    The Mission Our patented knowledge-sharing process, combined with the advantages of the Internet, allow us to change the way people solve their technology problems, gather information and share knowledge. The Experts Exchange Team is...

    Commercial Web / Cloud

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