NATSvsOpenSearch
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| NATS | OpenSearch | |
|---|---|---|
| Score | 80/100 | 76/100 |
| Rank in category | #2 of 12 in Message Broker | #7 of 41 in Search Engines |
| GitHub stars | 20 954 | 13 927 |
| Stars, last 30 days | +189 | +152 |
| Stable releases, 12 months | 18 | 11 |
| Latest release | v2.14.9 · 26 Oct 2026 | 2.19.7 · 17 Oct 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | Apache-2.0 |
| Main language | Go | Java |
Which one should you pick?
NATS scores 80/100 against 76/100 for OpenSearch, so it is the safer default.
NATS ships more often: 18 stable releases in the past year, against 11 for OpenSearch.
NATS details →OpenSearch details →
Swap a project
Keep NATS, compare it with
Keep OpenSearch, compare it with