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Free alternatives to Datadog

Datadog costs $15/mo on the Infrastructure Pro plan, or $180 a year. Here are 4 free and open-source options, what each one does, and what you give up compared with paying.

Prices checked Aug 14, 2026Can AI replace it? Nah

01At a glance

AlternativeTypeWhere it runsWorks on
CorootOpen sourceYou host itWeb, Your server
HyperDXOpen sourceYou host itWeb, Your server
OneUptimeOpen sourceHosted or self-hostedWeb, Your server
OpenObserveOpen sourceHosted or self-hostedWeb, Your server

02Each alternative, in detail

CorootOpen source

eBPF observability with opinions; best when your apps live in containers.

Versus paying: It is strongest for Linux containers and Kubernetes, but lacks Datadog's breadth across integrations, synthetics, RUM, security, cloud services, and managed global operation.

Setup: Docker Compose for one host, or the Kubernetes Operator/Helm for a cluster

Watch for: The eBPF node agent needs a supported Linux kernel and privileged host access on every node, and the product is most natural for containers and Kubernetes.

7,900 GitHub stars (checked Aug 6, 2026)

coroot.com →
HyperDXOpen source

Logs, traces, errors and session replay joined at the hip.

9,798 GitHub stars (checked Aug 6, 2026)

hyperdx.io →
OneUptimeOpen source

Monitoring, incidents and status pages in one stack; simplicity did not survive.

Versus paying: It covers many adjacent jobs, but its self-hosted stack is far heavier to run and its integration depth and polish trail Datadog's mature managed platform.

Setup: Hosted signup, or the release-branch Docker Compose stack; Helm is the production path

Watch for: The recommended self-hosted footprint is large and production requires secrets, TLS, backups, database care, and frequent upgrades rather than a single lightweight monitor.

7,400 GitHub stars (checked Aug 6, 2026)

oneuptime.com →
OpenObserveOpen source

A single-binary observability stack that remembers storage is not free.

Versus paying: It covers logs, metrics, and traces, but the agent ecosystem, RUM, synthetics, security products, integrations, and managed operations are much narrower than Datadog's.

Setup: Hosted signup, or a single binary/Docker container; Helm plus external services for HA

Watch for: The easy single-node path still needs collectors and persistent storage; production HA adds Kubernetes, object storage, PostgreSQL, and NATS.

20,578 GitHub stars (checked Aug 6, 2026)

openobserve.ai →

03What you give up by leaving Datadog

  • huge integration catalog, global ingestion, correlation, retention, security, and support
  • global probe network
  • phone and SMS delivery
  • massive retention
  • advanced incident response and support

People still pay for Datadog because monitoring must continue working during the exact outage it reports, which makes independent infrastructure and alert delivery the real product. The recurring cost buys probe geography, clocks, retries, deduplication, sampling, storage, paging, notification delivery, on-call rules, and its own uptime, not just the visible interface.

04Questions

Is there a free alternative to Datadog?

Yes. This page compares 4: Coroot, HyperDX, OneUptime and OpenObserve. All of them are open source, so you can run them yourself.

How much does Datadog cost?

$15/mo on the Infrastructure Pro plan (monthly per host), which is $180 a year. Prices checked Aug 14, 2026.

What do you give up with a free alternative to Datadog?

Most often: huge integration catalog, global ingestion, correlation, retention, security, and support, global probe network, phone and SMS delivery and massive retention. Each alternative on this page lists its own gap under “Versus paying.”

Can AI build me my own version of Datadog?

Nah. A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Datadog, collect a bounded set of host metrics and logs into a self-hosted dashboard. The hard boundary is huge integration catalog, global ingestion, correlation, retention, security, and support, plus independent infrastructure and reliable alerting.

Prices change; confirm on the vendor's site before you decide.