OpenObserve

OpenObserve is a cloud-native, open-source observability platform that unifies logs, metrics, traces, and Real User Monitoring (RUM) in a single application. Built in Rust, it ships as a single binary and achieves up to 140x lower storage costs versus Elasticsearch thanks to Parquet columnar storage and an S3-native architecture.

OpenObserve supports SQL and PromQL queries, a visual dashboard builder with 19+ chart types, distributed tracing with flame graphs and Gantt charts, alerting with anomaly detection, incident management, ingest-time pipelines for data enrichment and redaction, and AI/LLM observability with cost and token tracking. It is a full Datadog, Splunk, and Elasticsearch alternative.

Deploy via Docker or a single binary. OpenObserve is AGPL licensed with an enterprise edition that adds SSO, RBAC, audit trails, and SOC 2/ISO 27001 compliance. The open-source edition is feature-complete and production-ready.