head to head · open source
OpenSearch vs SeekStorm
OpenSearch has 13,726 GitHub stars, 2,958 forks, 3,167 open issues and last shipped yesterday. SeekStorm has 1,911 stars, 69 forks, 18 open issues and last shipped 6 days ago. OpenSearch leads on adoption by 618% (13,726 vs 1,911 stars). OpenSearch is written in Java under Apache-2.0; SeekStorm is written in Rust under Apache-2.0. OpenSearch has attracted 22% as many forks as stars, SeekStorm 4%. OpenSearch was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (search), 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
| OpenSearch | SeekStorm | |
|---|---|---|
| GitHub stars | ★ 14K | ★ 1.9K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Rust |
| Last push | 2026-09-17 | 2026-09-12 |
| Forks | ⑂ 3.0K | ⑂ 69 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenSearch if
- You weight community size — 14K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick SeekStorm if
- You want the SeekStorm feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and SeekStorm fits your workflow better
About OpenSearch
OpenSearch is an open source, distributed, and RESTful search engine, described in its README as an enterprise grade search and observability suite. It lives in the open source search and analytics ecosystem, is written in Java, and is licensed under Apache 2.0. The project states that it includes certain Apache licensed Elasticsearch code from Elasticsearch B.V., and that OpenSearch is a registered trademark of LF Projects, LLC.
read the full OpenSearch overview →
About SeekStorm
SeekStorm is Rust search project. It gives full text search API with real time indexing and crawling. It gives native vector and lexical search. It ships as in process library and multi tenancy server. It lives in Rust infrastructure and search engine ecosystem. It connects with crates.io, Docker, REST clients, and InstantSearch.js. License is Apache 2.0. GitHub shows 1910 stars and 69 forks. Category is Infrastructure and Operations and Search Engines.
read the full SeekStorm overview →
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Frequently asked questions
Is OpenSearch or SeekStorm more popular?
OpenSearch has 13,726 GitHub stars and SeekStorm has 1,911. OpenSearch has the larger community by that measure.
Are OpenSearch and SeekStorm free?
Both are open source. OpenSearch is licensed under Apache-2.0 and SeekStorm under Apache-2.0. Neither carries a licence fee.
What is the difference between OpenSearch and SeekStorm?
OpenSearch is written in Java and SeekStorm in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenSearch or SeekStorm?
Choose OpenSearch if you want the larger community (13,726 stars) or its Apache-2.0 licence terms. Choose SeekStorm if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.