Perplexica vs Xapian
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Perplexica
Open-source AI-powered search engine
VS
Xapian
Mature open-source probabilistic search engine library
| Feature | Perplexica | Xapian |
|---|---|---|
| Category | Search Engines | Search Engines |
| License | MIT | GPL-2.0 |
| Language | TypeScript | C++ |
| Setup difficulty | Medium | Medium |
| Min. RAM | 1,024 MB | 128 MB |
| Deployment | docker, bare-metal | bare-metal, source |
| GitHub stars | ★ 36,045 | ★ 877 |
| First released | 2024 | 1999 |
| Replaces | Google Search | Elasticsearch |
Why pick each one
Frequently asked questions
Is Perplexica or Xapian better?
Neither is universally better. Perplexica has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Perplexica and Xapian free and open-source?
Yes. Perplexica is licensed under MIT and Xapian under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Perplexica and Xapian with Docker?
Perplexica: yes. Xapian: check the project docs for container support.