OpenSearchvsOrca
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| OpenSearch | Orca | |
|---|---|---|
| Score | 76/100 | 91/100 |
| Rank in category | #7 of 41 in Search Engines | #1 of 209 in AI Agents |
| GitHub stars | 13 921 | 108 642 |
| Stars, last 30 days | +156 | +8 735 |
| Stable releases, 12 months | 11 | 15 |
| Latest release | 2.19.7 · 17 Oct 2026 | v1.4.243 · 28 Oct 2026 |
| Setup | Moderate | Easy |
| Official Docker image | Yes | No |
| License | Apache-2.0 | MIT |
| Main language | Java | Typescript |
Which one should you pick?
Orca scores 91/100 against 76/100 for OpenSearch, so it is the safer default.
Orca ships more often: 15 stable releases in the past year, against 11 for OpenSearch.
If you want the quickest setup, Orca is easier to run; OpenSearch needs more configuration.
Orca is growing faster right now (+8 735 stars in 30 days).
OpenSearch details →Orca details →
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