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... Freemium Web Android iPhone Android Tablet iPad Community based IFTTT integration Q&A Add a feature 322 Like
Stack Overflow Stack Overflow, part of Stack Exchange , is a free, community-driven, reputation-based Q & A site for computer programmers. No... Free Web Android iPhone Q&A Knowledge base Add a feature 354 Like
Stack Exchange Stack Exchange is a fast-growing network of 84 [and counting] question and answer sites on diverse topics from software programming to cooking to photography and gaming.... Free Web Android iPhone Android Tablet iPad Q&A Add a feature 216 Like
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... Free Web Android iPhone Anonymity Q&A Q&A Add a feature 161 Like
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... Free Web Genious UI Q&A Real time collaboration Add a feature 65 Like
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... Free Open Source Web Based on Blockchain Add a feature 49 Like
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... Free Open Source Mac OS X Windows Linux Web MySQL Community Edition ... Self-Hosted PHP Q&A Add a feature 16 Like
Askme Startups get your queries answered by the World's Top Investors and Entrepreneurs. Startups + Investors +Entrepreneurs Connect. Free Web Q&A Add a feature 12 Like
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 Q&A Add a feature 13 Like
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... Free Open Source Web Self-Hosted Python Django Q&A Add a feature 11 Like
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... Freemium Web Self-Hosted Python Django Q&A Add a feature 11 Like
Mamute A tool for community driven questions and answers. Includes voting, mark as solved, tags and many more. Free Open Source Self-Hosted Q&A Add a feature 5 Like
Bitfortip Bitfortip offers a unique use case thanks to Bitcoin. Use Bitfortip to: Find a item (i.e. a dress ) that you saw on a magazine,website, Pinterest or Instagram and... Free Web Android Q&A Add a feature 4 Like
Solace Solace is a fully open-sourced multilingual support and knowledge exchange platform written in Python. Free Open Source Mac OS X Windows Linux Web Knowledge base Q&A Add a feature 5 Like 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... Free Open Source Linux Web Self-Hosted Q&A Add a feature 4 Like
