Alternatives to Question2Answer for all platforms with any license

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 Community based Keyword Research Knowledge base ... Point System Q&A Add a feature

389 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

238 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
Customer Feedback Knowledge base Q&A Add a feature

6 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...
- Discontinued The last commit to its open source code (https://github.com/dzone/osqa) is dated 2015. The official website URL (www.osqa.net) redirects to the proprietary product Answer-Hub (https://devada.com/answerhub/). www.osqa.net also happens to be in a blacklist used by the uMatrix browser extension.
Free Open Source Web Self-Hosted Python Django
Q&A Add a feature

12 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

12 Like
Hypersay

Hypersay is a platform for interactive presentations that massively increase engagement. Keep your audience engaged with polls, questions, private notes and live slide...

Freemium $ $ $ Mac Windows Linux Web Android ... iPhone Chrome OS iPad
Real time collaboration Anonymity Automatic customer engagement Customer Feedback ... Embed subtitles into video Auto Follow up Mail Handwritten Notes Live Push Notifications Private notes Q&A Session Analytics Add a feature

4 Like
AnswerCart

AnswerCart help companies modern & elegant community forum to drive customer engagement, for customer support & internal collaboration. .

Commercial $ $ $ Web
Autocompletion Customer Feedback Gamification Integrated Bulk Emailing ... Integrated Search Single Sign-On Software as a Service Add a feature

2 Like
Solace

Solace is a fully open-sourced multilingual support and knowledge exchange platform written in Python.
- Discontinued Latest commit on Nov 29, 2009, see https://github.com/Plurk/Solace
Free Open Source Mac Windows Linux Web
Knowledge base Q&A Add a feature

6 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

5 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
Customer Feedback Knowledge base Add a feature

8 Like
Fixoncloud

Interaction platform for programming enthusiasts, learners, and experts to solve problems. Fast and inexpensive solutions to your programming problems. People with no...

Free Windows
Q&A Add a feature

3 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 Software as a Service Add a feature

1 Like
Answers

Answers is the place to go to ask questions and receive answers from the community at large on any topic. Connect with people who know the answers to your questions...
- Answers is not a plugin/tool to create Q&A site. Guest • Mar 2019
Free iPhone
Community based Q&A Add a feature

5 Like
Eris Solver

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

Free Web
No features added 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

3 Like