8 open-source Datadog alternatives

ranked by how closely each fits what Datadog does

1. 1SSigNozsignoz.ioOpenTelemetry-Native Traces, Metrics, and Logs in a single pane of glass$49–$4000/moFree planOpen sourceSelf-hostable
2. 2GGrafanagrafana.comFull-stack observability for the agentic eraFrom $19/moFree planOpen sourceSelf-hostable
3. 3MMonoscopeapitoolkit.ioFind and fix production issues, before customers notice$29–$500/moFree planOpen sourceSelf-hostable
4. 4NNetdatanetdata.cloudMonitoring and troubleshooting transformedFrom $4.5/moFree planOpen sourceSelf-hostable
5. 5SSentrysentry.ioCode breaks, fix it faster$26–$80/moFree planOpen sourceSelf-hostable
6. 6CCheckmkcheckmk.comUnified IT Observability for the Hybrid World. For cloud. For on-premises.From €190/moFree planOpen sourceSelf-hostable
7. 7OOneUptimeoneuptime.comOpen-Source Observability & Incident Management$22–$99/moFree planOpen sourceSelf-hostable
8. 8ZZabbixzabbix.comThe enterprise-class open source observability solution$325–$825/moFree planOpen sourceSelf-hostable

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