Stack Overflow, part of Stack Exchange, is a free, community-driven, reputation-based Q & A site for computer programmers. No membership is required to ask questions or provide answers to questions by others.

Scoold is described as 'Is inspired by StackOverflow and implements most of its features. You can ask and answer questions, upvote and downvote posts, earn badges and reputation. Each edit creates an new revision, making it easy to follow the history of edits. Scoold is optimized for the cloud' and is a Q&A service in the social & communications category. There are more than 10 alternatives to Scoold for a variety of platforms, including Web-based, Android, Self-Hosted, iPhone and Android Tablet apps. The best Scoold alternative is Stack Overflow. It's not free, so if you're looking for a free alternative, you could try Stack Overflow or Quora. Other great apps like Scoold are Aether, Question2Answer, DeriveIt and Nobl.
Stack Overflow, part of Stack Exchange, is a free, community-driven, reputation-based Q & A site for computer programmers. No membership is required to ask questions or provide answers to questions by others.

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.




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.




Open source, self-governing communities with auditable moderation and mod elections.




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.




An android app for questions and answers with group discussion. You can ask questions and answer questions as of your wish and need. Also, you can discuss something with others in the group chat.








Help each other — with the main features from StackOverflow, Discourse, Slack, Reddit, and Disqus.
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.

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.

den.social is a decentralized reddit-like community, where people can post inside "Lairs" akin to subreddits, and govern each lairs via votes.

