Stack Exchange is described as 'Fast-growing network of 84 [and counting] question and answer sites on diverse topics from software programming to cooking to photography and gaming. We are an expert knowledge exchange: a place where physics researchers can ask each other about quantum' and is a very popular Q&A service in the education & reference category. There are more than 50 alternatives to Stack Exchange, not only websites but also apps for a variety of platforms, including Self-Hosted, Android, iPhone and Android Tablet apps. The best Stack Exchange alternative is Quora, which is free. Other great sites and apps similar to Stack Exchange are Codidact, SaidIt.net, WikiSpooks.com and Aether.
People come to Quora to ask questions about any subject, read high quality knowledge that's personalized and relevant to them, and share their own knowledge with others. Quora is a place to share knowledge and better understand the world.
too closed, userinterface a lot less clear than other alternatives
Ever had a question? Ever had an answer? Ever had knowledge to share? We believe that coming together to inquire and learn, to share knowledge and to teach each other, makes the world a better place. We also believe that Q&A communities should be free from the politics and...
It's free open source and is non-profit compared to Stack Exchange being a 'for-profit' organization
It's one of the few on this list that's an actual alternative and not just community forums
Uncensored free speech alternative to the extreme Reddit and Voat forums, democratically civilized by Graham's Debate Pyramid, no illegal transactions nor porn. Truth-seeking anti-corruption news are among the popular themes. Android app, iOS soon.
WikiSpooks is a global alternative encyclopedia on politics, spy craft, deep state intelligence, and conspiracies, free of corporate influence, partisan politics, or government propaganda for historians and truth-seekers to read, edit, and share.
Open source, self-governing communities with auditable moderation and mod elections.
TopAnswers is what Stack Overflow should be: focused on communities and knowledge sharing, not profit. We share some of the same aims:
Q&A platform software for teams at any scale. Whether it's a community forum, help center, or knowledge management platform, you can always count on Apache Answer.
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.
This is not a website/service/forum like Stack Exchange, Reddit, Quora, etc. Rather, it is software to create a Q&A website or add Q&A to an existing website.
Learn about the tech stack behind some of the world's best software companies. See which tools and services they use, and how they're using them.
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 the community wins.
United States
Canada
United Kingdom
It also has a question and answer format, people tend to be helpful rather than rude, self interested and useless.