Answer vs Question2Answer
A side-by-side comparison of two self-hosted forums & community options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Answer | Question2Answer |
|---|---|---|
| Deploy effort | ≈5-minute setup | Under-an-hour setup |
| Health score | 95 · Excellent | 16 · At risk |
| Category | Forums & Community | Forums & Community |
| License | Apache-2.0 | GPL-3.0 |
| Language | Go | PHP |
| Setup difficulty | Easy | Easy |
| Min. RAM | 512 MB | 256 MB |
| Deployment | docker, binary, source | docker, bare-metal, source |
| GitHub stars | ★ 15,684 | ★ 1,669 |
| First released | 2022 | 2010 |
| Replaces | Stack Overflow, Confluence | Stack Overflow, Quora |
What are Answer and Question2Answer?
Answer
Answer is an open-source knowledge-based community platform that combines Q&A, articles, and documentation. It is built in Go and designed to be a modern Stack Overflow alternative.
- Q&A with articles and docs
- Single binary deployment
- Reputation and badges
- Plugin system
Question2Answer
Question2Answer is a popular, free PHP platform for running a question-and-answer community website. It is fast, easy to install, and supports plugins, themes, and multiple languages.
- Lightweight Q&A engine
- Voting and reputation system
- Plugin and theme support
- Multilingual interface
Answer vs Question2Answer: key differences
Answer is written in Go, while Question2Answer is built with PHP. Licensing differs — Apache-2.0 for Answer versus GPL-3.0 for Question2Answer. Question2Answer is the lighter option, starting around 256 MB of RAM against 512 MB for Answer. Question2Answer is the more established project (first released 2010), while Answer arrived in 2022. Answer has the considerably larger community, at 15,684 GitHub stars versus 1,669.
Why pick each one
Choose Answer if…
- Modern interface
- Easy to deploy
Watch out for
- Younger project
- Smaller plugin library
Choose Question2Answer if…
- Easy to install and host
- Fast and simple
Watch out for
- Dated default theme
- Q&A only
Frequently asked questions
Is Answer or Question2Answer better?
Neither is universally better. Answer has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Answer and Question2Answer free and open-source?
Yes. Answer is licensed under Apache-2.0 and Question2Answer under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Answer and Question2Answer with Docker?
Answer: yes. Question2Answer: yes.
Which is lighter on resources, Answer or Question2Answer?
Question2Answer has the smaller minimum footprint at 256 MB of RAM, compared to about 512 MB for Answer. Real-world usage depends on library size, user count, and enabled features.