# OpenSearch vs simon

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

| | OpenSearch | simon |
|---|---|---|
| Score | 76/100 ✓ | 46/100 |
| Rank in category | #7 of 41 in Search Engines | #74 of 104 in Monitoring & observability |
| GitHub stars | 13 930 ✓ | 161 |
| Stars, last 30 days | +155 ✓ | +0 |
| Stable releases, 12 months | 11 ✓ | 9 |
| Latest release | 2.19.7 · 17 Oct 2026 | 0.3.7 · 18 Oct 2026 ✓ |
| Setup | Moderate | Easy ✓ |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | MIT |
| Main language | Java | Rust |

## Which one should you pick?

OpenSearch scores 76/100 against 46/100 for simon, so it is the safer default.

OpenSearch ships more often: 11 stable releases in the past year, against 9 for simon.

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

OpenSearch is growing faster right now (+155 stars in 30 days).

## Details

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

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