head to head · open source
Elasticsearch vs SearXNG
Elasticsearch has 77,925 GitHub stars, 26,069 forks, 6,059 open issues and last shipped yesterday. SearXNG has 37,253 stars, 3,396 forks, 215 open issues and last shipped yesterday. Elasticsearch leads on adoption by 109% (77,925 vs 37,253 stars). Elasticsearch is written in Java under a custom or non-standard licence; SearXNG is written in Python under AGPL-3.0. Elasticsearch has attracted 33% as many forks as stars, SearXNG 9%. Elasticsearch was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (search-engine), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Elasticsearch | SearXNG | |
|---|---|---|
| GitHub stars | ★ 78K | ★ 37K |
| License | Custom / other | AGPL-3.0 |
| Written in | Java | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 26K | ⑂ 3.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Elasticsearch if
- You weight community size — 78K stars and counting
- You want the Custom / other license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick SearXNG if
- You want the SearXNG feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and SearXNG fits your workflow better
About Elasticsearch
Elasticsearch is a distributed search and analytics engine built in Java, designed for near real time search, scalability, and high performance data querying on production workloads. It serves as the core storage and indexing layer of Elastic’s open stack and supports full text, structured, and vector based search.
read the full Elasticsearch overview →
About SearXNG
SearXNG is a free, self hostable metasearch engine that aggregates results from more than 270 search services and databases, and it is meant for people and organizations that want web search without being tracked or profiled.
read the full SearXNG overview →
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Frequently asked questions
Is Elasticsearch or SearXNG more popular?
Elasticsearch has 77,925 GitHub stars and SearXNG has 37,253. Elasticsearch has the larger community by that measure.
Are Elasticsearch and SearXNG free?
Both are open source. Elasticsearch has no licence declared in this registry, and SearXNG is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Elasticsearch and SearXNG?
Elasticsearch is written in Java and SearXNG in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Elasticsearch or SearXNG?
Choose Elasticsearch if you want the larger community (77,925 stars) or its Custom / other licence terms. Choose SearXNG if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.