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Log Management · head to head

Datadog Logs vs ELK Stack

Datadog Logs logo

Datadog Logs

Log Management

Log Management and Analytics

From
$0.1/per GB ingested per month
Rated
-
Full reviewWebsite
ELK Stack logo

ELK Stack

Log Management

Open Source Search and Log Analytics

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only ELK Stack has a free tier, so it costs nothing to try first.
  • Each has a real cost: Datadog Logs complex, multi-tiered pricing model based on ingestion, indexing, and storage; can become expensive at scale; ELK Stack the free Basic self managed subscription excludes machine learning, alerting, single sign on via SAML or OpenID Connect, LDAP and Active Directory authentication, field and document level security, searchable snapshots and cross cluster replication
  • They diverge on capability: Datadog Logs covers Log ingestion, ELK Stack covers Data visualization.

Where they differ

Only the attributes on which Datadog Logs and ELK Stack actually diverge.

Attributes where Datadog Logs and ELK Stack differ
AttributeDatadog LogsELK Stack
Starting price$0.1/per GB ingested per monthFree
Pricing modelusage-basedopen-source
Free tierNoYes
PlatformsCloud (AWS, Azure, Google Cloud, Oracle Cloud)Web, Api
Founded20102011

Identical on both: user rating (Not yet rated), category (Log Management).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Datadog Logs

  • Log ingestion
  • Custom dashboards
  • Log-based metrics

Only in ELK Stack

  • Data visualization
  • Log aggregation
  • Time-series analytics

Both cover

  • Full-text search
  • API
  • Webhooks
  • REST
  • Web support
  • Api support

What people use each for

The jobs each tool is most often brought in to do.

Datadog Logs

  • Centralised log aggregation and analysisnot ELK Stack
  • Multi-source log correlation with metrics and tracesnot ELK Stack
  • Root cause analysis and troubleshootingnot ELK Stack
  • Security monitoring and threat detectionnot ELK Stack

ELK Stack

  • Centralised log search and analytics over Elasticsearchnot Datadog Logs
  • Dashboards and visualisation of machine data in Kibananot Datadog Logs
  • Self managing a search and observability cluster on your own hardwarenot Datadog Logs

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Datadog Logs

  • Complex, multi-tiered pricing model based on ingestion, indexing, and storage; can become expensive at scale
  • Ingestion pricing of $0.10/GB can accumulate rapidly for high-volume logging environments

ELK Stack

  • The free Basic self managed subscription excludes machine learning, alerting, single sign on via SAML or OpenID Connect, LDAP and Active Directory authentication, field and document level security, searchable snapshots and cross cluster replication
  • Cross cluster operations require the same subscription tier on every cluster involved
  • The 99.95 percent monthly uptime SLA applies only to the Platinum and Enterprise subscription tiers
  • Three deployment models are priced on three different bases: resource based for Cloud Hosted, usage based for Serverless and licence based on nodes and RAM for self managed
  • Elastic Cloud Serverless does not yet support traffic filtering, cross project search or bring your own key
  • The pricing page publishes no rate for any tier

Pricing, plan by plan

Datadog Logs

$0.1/per GB ingested per month

No published plan breakdown. See the Datadog Logs review.

ELK Stack

Free
  • FreeFree
    • Full-text search
    • Data visualization
    • Log aggregation

Which should you pick?

Choose Datadog Logs if

  • You need log ingestion.
  • You work on Cloud (AWS, Azure, Google Cloud, Oracle Cloud).
  • You also want custom dashboards.
Datadog Logs review

Choose ELK Stack if

  • You need data visualization.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want log aggregation.
ELK Stack review

Questions people ask

Is Datadog Logs or ELK Stack better?
Neither clearly leads. Datadog Logs starts at $0.1/per GB ingested per month and ELK Stack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Datadog Logs or ELK Stack?
ELK Stack has a free tier; the other does not. Paid plans start at $0.1/per GB ingested per month for Datadog Logs and Free for ELK Stack.
Does Datadog Logs or ELK Stack run on more platforms?
Datadog Logs runs on Cloud (AWS, Azure, Google Cloud, Oracle Cloud). ELK Stack runs on Web, Api.
Can I use ELK Stack for free?
Yes. ELK Stack has a free tier, so you can try it without paying. Datadog Logs starts at $0.1/per GB ingested per month.
What is Datadog Logs best used for?
Datadog Logs is most often used for centralised log aggregation and analysis, multi-source log correlation with metrics and traces, root cause analysis and troubleshooting, security monitoring and threat detection. Of those, centralised log aggregation and analysis and multi-source log correlation with metrics and traces are not what ELK Stack is typically brought in for.
What can Datadog Logs do that ELK Stack cannot?
Datadog Logs covers Log ingestion, Custom dashboards, Log-based metrics. ELK Stack covers Data visualization, Log aggregation, Time-series analytics. Both handle Full-text search, API, Webhooks, REST.
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