Open source alternatives to Datadog

5 projects on starwire do the same job. Ranked by how much of what Datadog does each one covers, read from its README and website. Ties go to the most active.

What Datadog does

Infrastructure and host metricscore
Log collection and searchcore
Application performance tracingcore
Dashboards
Alerts and on-call notifications
Many integrations
Real user and synthetic monitoring
Security monitoring

Each dot in the table is one job, in this order. Square dots are core jobs and count double. Full means yes, half means partly. "See the evidence" under a project shows the line behind each one. Coverage is what a project documents, not how well it works or how hard it is to move to. How we score this

Project	Covers	Stars	Commits, 12 weeks	Last release	Closed vs opened	Setup	License
tracewayObservability platform for logs, metrics and traces via OpenTelemetry	Replaces it86%	1.8k+8	198	4 days ago	85%	Hosted version	MIT
Covers all 3 core jobs. Partly: Many integrations. Not shown: Security monitoring.See the evidence Infrastructure and host metricscoreYesHost, runtime, and custom metrics Log collection and searchcoreYesStructured, trace-linked, sub-second search Application performance tracingcoreYesEnd-to-end span waterfalls across every service DashboardsYesAny dimension, any chart, with custom widget groups Alerts and on-call notificationsYesescalation policies, and pages that escalate Many integrationsPartlyPoint an OTLP exporter at it Real user and synthetic monitoringYessession replay/RUM Security monitoringNot shownNeither the README nor the website mentions it.
signozOpenTelemetry observability platform for logs, metrics and traces	Replaces it82%	33k+99	423	10 days ago	94%	Hosted version	Custom license
Covers all 3 core jobs. Not shown: Real user and synthetic monitoring; Security monitoring.See the evidence Infrastructure and host metricscoreYesMonitor Kubernetes clusters, pods, nodes, workloads Log collection and searchcoreYesIngest, search, aggregate, and correlate logs Application performance tracingcoreYesMonitor service latency, error rate, throughput DashboardsYesBuild dashboards for application, infrastructure, and custom metrics Alerts and on-call notificationsYesThreshold, anomaly, and Apdex alerts Many integrationsYesintegrations for OpenTelemetry, Prometheus, Kubernetes, cloud providers Real user and synthetic monitoringNot shownNeither the README nor the website mentions it. Security monitoringNot shownNeither the README nor the website mentions it.
corootObservability tool with metrics, logs, traces and AI root cause analysis	Replaces it73%	8.0k+14	161	10 days ago	57%	Needs a server	Apache-2.0
Covers all 3 core jobs. Not shown: Many integrations; Real user and synthetic monitoring; Security monitoring.See the evidence Infrastructure and host metricscoreYesfrom applications and databases to infrastructure, cloud and network Log collection and searchcoreYesLightning-fast search based on ClickHouse Application performance tracingcoreYesExplore any outlier requests with distributed tracing DashboardsYespredefined dashboards and inspections Alerts and on-call notificationsYesCoroot will send a single alert Many integrationsNot shownNeither the README nor the website mentions it. Real user and synthetic monitoringNot shownNeither the README nor the website mentions it. Security monitoringNot shownNeither the README nor the website mentions it.
prometheusMonitoring system and time series database	Covers one part45%	68k+62	841	9 days ago	100%	Needs a server	Apache-2.0
Covers 1 of 3 core jobs. Not shown: Log collection and search; Application performance tracing; Real user and synthetic monitoring; Security monitoring.See the evidence Infrastructure and host metricscoreYescollects metrics from configured targets at given intervals Log collection and searchcoreNot shownNeither the README nor the website mentions it. Application performance tracingcoreNot shownNeither the README nor the website mentions it. DashboardsYesMultiple modes of graphing and dashboarding support Alerts and on-call notificationsYesAlertmanager component handles notifications and silencing Many integrationsYeshundreds of official and community-contributed integrations Real user and synthetic monitoringNot shownNeither the README nor the website mentions it. Security monitoringNot shownNeither the README nor the website mentions it.
lokiLog aggregation system that indexes labels rather than full text	Covers one part45%	29k+22	1,343	yesterday	100%	Hosted version	AGPL-3.0
Covers 1 of 3 core jobs. Partly: Infrastructure and host metrics; Dashboards; Many integrations. Not shown: Application performance tracing; Real user and synthetic monitoring; Security monitoring.See the evidence Infrastructure and host metricscorePartlyBuild metrics and generate alerts from your log lines Log collection and searchcoreYeslog aggregation system designed to store and query logs Application performance tracingcoreNot shownNeither the README nor the website mentions it. DashboardsPartlyGrafana for querying and displaying the logs. Alerts and on-call notificationsYesSet up alerting rules for Loki Many integrationsPartlysend logs in any format, from any source Real user and synthetic monitoringNot shownNeither the README nor the website mentions it. Security monitoringNot shownNeither the README nor the website mentions it.

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