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
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
Scoold Scoold 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... Free Open Source Web Self-Hosted Knowledge base Q&A Add a feature 5 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
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
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
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
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... Freemium Linux Web Knowledge base Add a feature 7 Like
Glisser Glisser makes presentations interactive, by combining them with live audience Q&A and polls. Freemium Mac OS X Windows Web Clear interface Customizable Q&A Add a feature 6 Like
AnswerCart AnswerCart provide a community platform to the businesses which can be integrated with websites or mobile apps. Using community, users can engage in Q&A, blogging... Commercial Web Customizable Q&A Add a feature 1 Like
Askalot Askalot is a next generation CQA (Community Question and Answer) system. Free Open Source Self-Hosted Q&A Add a feature 1 Like
Answerbase Answerbase looks to offer enterprise grade social Q&A to websites of every size, in a web platform that is easy to setup and manage. The platform is built and... Commercial Web Q&A Add a feature 0 Like
Niko Niko makes it incredibly easy for employees at all levels to share what is on their mind by letting them submit, vote on, and respond to questions, ideas and... Freemium Web Self-Hosted Q&A Add a feature 0 Like
YES NO Hypersay Hypersay is a platform for interactive presentations that massively increase engagement. Keep your audience engaged with polls... anonymity audience-engaged audience-qanda-wall claps embed-videos
