Elasticsearch vs RediSearch
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
RediSearch
Full-text and vector search module for Redis
| Feature | Elasticsearch | RediSearch |
|---|---|---|
| Category | Search Engines | Search Engines |
| License | Elastic-2.0 | RSALv2 |
| Language | Java | Rust |
| Setup difficulty | Hard | Medium |
| Min. RAM | 2,048 MB | 512 MB |
| Deployment | docker, kubernetes, bare-metal | docker, kubernetes, binary |
| GitHub stars | ★ 77,808 | ★ 6,205 |
| First released | 2010 | 2017 |
| Replaces | Algolia, Splunk | Elasticsearch, Algolia |
Why pick each one
Frequently asked questions
Is Elasticsearch or RediSearch better?
Neither is universally better. Elasticsearch has the larger community, while RediSearch is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Elasticsearch and RediSearch free and open-source?
Yes. Elasticsearch is licensed under Elastic-2.0 and RediSearch under RSALv2. Both can be self-hosted at no software cost.
Can I run Elasticsearch and RediSearch with Docker?
Elasticsearch: yes. RediSearch: yes.