Datadog is a hosted monitoring and observability platform priced per host, per metric and per log gigabyte. Open monitoring stacks cover metrics, logs and traces on your own servers, so costs stay predictable and telemetry never leaves your network.
8 open-source alternatives to Datadog you can host yourself, ranked by GitHub stars and updated daily.
| # | App | Category | Stars | Language | Updated |
|---|---|---|---|---|---|
| 1 |
netdata/netdata
|
Monitoring & Alerting | 81,377 | Go | today |
| 2 |
grafana/grafana
|
BI & Data Visualization Monitoring & Alerting |
77,852 | TypeScript | today |
| 3 |
prometheus/prometheus
|
Monitoring & Alerting | 67,560 | Go | today |
| 4 |
nicolargo/glances
|
Monitoring & Alerting | 33,936 | Python | today |
| 5 |
SigNoz/signoz
|
Monitoring & Alerting Log Management |
32,595 | TypeScript | today |
| 6 |
grafana/loki
|
Log Management | 29,162 | Go | today |
| 7 |
apache/hertzbeat
|
Monitoring & Alerting | 7,463 | Java | 1d |
| 8 |
Checkmk/checkmk
|
Monitoring & Alerting | 2,642 | Python | today |