# cap vs OpenSearch

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | cap | OpenSearch |
|---|---|---|
| Score | 79/100 ✓ | 76/100 |
| Rank in category | #1 of 12 in Video | #7 of 41 in Search Engines |
| GitHub stars | 24 042 ✓ | 13 930 |
| Stars, last 30 days | +1 269 ✓ | +155 |
| Stable releases, 12 months | 14 ✓ | 11 |
| Latest release | cap-v0.6.2 · 28 Oct 2026 ✓ | 2.19.7 · 17 Oct 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | Yes |
| License | Other | Apache-2.0 |
| Main language | Rust | Java |

## Which one should you pick?

cap scores 79/100 against 76/100 for OpenSearch, so it is the safer default.

cap ships more often: 14 stable releases in the past year, against 11 for OpenSearch.

cap is growing faster right now (+1 269 stars in 30 days).

## Details

- [cap](https://selfhost.directory/project/cap) (markdown: https://selfhost.directory/project/cap.md)
- [OpenSearch](https://selfhost.directory/project/opensearch) (markdown: https://selfhost.directory/project/opensearch.md)

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Source: https://selfhost.directory/compare/cap-vs-opensearch