Elasticsearch vs PeARS
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?
Elasticsearch
Distributed search and analytics engine
VS
PeARS
Lightweight distributed web search you can host yourself
| Feature | Elasticsearch | PeARS |
|---|---|---|
| Category | Search Engines | Search Engines |
| License | Elastic-2.0 | AGPL-3.0 |
| Language | Java | HTML |
| Setup difficulty | Hard | Medium |
| Min. RAM | 2,048 MB | 512 MB |
| Deployment | docker, kubernetes, bare-metal | docker, bare-metal |
| GitHub stars | ★ 77,808 | ★ 38 |
| First released | 2010 | 2017 |
| Replaces | Algolia, Splunk | Google Search |
Why pick each one
Frequently asked questions
Is Elasticsearch or PeARS better?
Neither is universally better. Elasticsearch has the larger community, while PeARS is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Elasticsearch and PeARS free and open-source?
Yes. Elasticsearch is licensed under Elastic-2.0 and PeARS under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Elasticsearch and PeARS with Docker?
Elasticsearch: yes. PeARS: yes.