# Concat vs OpenSearch

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

| | Concat | OpenSearch |
|---|---|---|
| Score | 82/100 ✓ | 76/100 |
| Rank in category | #1 of 18 in Video Processing | #7 of 41 in Search Engines |
| GitHub stars | 12 525 | 13 930 ✓ |
| Stars, last 30 days | +2 526 ✓ | +155 |
| Stable releases, 12 months | 6 | 11 ✓ |
| Latest release | v0.2.8 · 20 Oct 2026 ✓ | 2.19.7 · 17 Oct 2026 |
| Setup | Easy ✓ | Moderate |
| Official Docker image | No | Yes ✓ |
| License | AGPL-3.0 | Apache-2.0 |
| Main language | Rust | Java |

## Which one should you pick?

Concat scores 82/100 against 76/100 for OpenSearch, so it is the safer default.

OpenSearch ships more often: 11 stable releases in the past year, against 6 for Concat.

If you want the quickest setup, Concat is easier to run; OpenSearch needs more configuration.

Concat is growing faster right now (+2 526 stars in 30 days).

## Details

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

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