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.

Askalot is described as 'Next generation CQA (Community Question and Answer) system' and is a Q&A service in the education & reference category. There are more than 10 alternatives to Askalot for a variety of platforms, including Web-based, Self-Hosted, Windows, Linux and Mac apps. The best Askalot alternative is Stack Overflow. It's not free, so if you're looking for a free alternative, you could try Stack Overflow or Stack Exchange. Other great apps like Askalot are OSQA, AskBot, Fixoncloud and Solace - Multilingual Support System.
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.

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. We are an expert knowledge exchange: a place where physics researchers can ask each other about quantum...




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.



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.

Interaction platform for programming enthusiasts, learners, and experts to solve problems. Fast and inexpensive solutions to your programming problems. People with no prior knowledge of the programming knowledge can start from here and reach an expertise level.

Solace is a fully open-sourced multilingual support and knowledge exchange platform written in Python.
Mamut is a tool that allows to ask questions and give answers and comment on both. In addition users could vote for questions and answers and mark solved questions as such.


Hypersay is a platform for interactive presentations that massively increase engagement. Keep your audience engaged with polls, questions, private notes and live slide sharing. Store, enrich & deliver presentations from your cloud.




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 suggestions. It creates a different employee engagement experience.
Eris Solver implements an innovative way to solve complex problems by adapting the Osborn's methodology (brainstorming technique) to a Problem Tree Analysis and by channelling Collective Intelligence.
