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Software · head to head

ELK Stack vs Logstash

ELK Stack logo

ELK Stack

Software

Open Source Search and Log Analytics

From
Free
Rated
-
Full reviewWebsite
Logstash logo

Logstash

Software

Data Processing Pipeline for Ingestion

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 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; Logstash logstash's source is dual licensed: code outside the x-pack directory is Apache License 2.0, but code inside x-pack (which carries several of Logstash's monitoring and management features) is licensed under the Elastic License, not a fully open source license
  • They diverge on capability: ELK Stack covers Full-text search, Logstash covers Data ingestion.

Where they differ

Only the attributes on which ELK Stack and Logstash actually diverge.

Attributes where ELK Stack and Logstash differ
AttributeELK StackLogstash

Identical on both: starting price (Free), pricing model (open-source), free tier (Yes), platforms (Web, Api), user rating (Not yet rated), category (Unknown), founded (2011).

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 ELK Stack

  • Full-text search
  • Data visualization
  • Log aggregation
  • Time-series analytics

Only in Logstash

  • Data ingestion
  • Event parsing
  • Data transformation
  • Multiple input sources

Both cover

  • API
  • Webhooks
  • REST
  • Web support
  • Api support

What people use each for

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

ELK Stack

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

Logstash

  • Log monitoringnot ELK Stack
  • Application performancenot ELK Stack
  • Security analyticsnot ELK Stack
  • Troubleshootingnot ELK Stack

Where each one falls short

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

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

Logstash

  • Logstash's source is dual licensed: code outside the x-pack directory is Apache License 2.0, but code inside x-pack (which carries several of Logstash's monitoring and management features) is licensed under the Elastic License, not a fully open source license

Pricing, plan by plan

ELK Stack

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

Logstash

Free
  • FreeFree
    • Data ingestion
    • Event parsing
    • Data transformation

Which should you pick?

Choose ELK Stack if

  • You need full-text search.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want data visualization.
ELK Stack review

Choose Logstash if

  • You need data ingestion.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want event parsing.
Logstash review

Questions people ask

Is ELK Stack or Logstash better?
Neither clearly leads. ELK Stack starts at Free and Logstash at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ELK Stack or Logstash?
ELK Stack starts at Free and Logstash at Free.
Does ELK Stack or Logstash run on more platforms?
Both run on Web, Api, so platform support will not decide this one for you.
Can I use ELK Stack for free?
Both have a free tier, so you can try either at no cost before committing.
What is ELK Stack best used for?
ELK Stack is most often used for centralised log search and analytics over elasticsearch, dashboards and visualisation of machine data in kibana, self managing a search and observability cluster on your own hardware. Of those, centralised log search and analytics over elasticsearch and dashboards and visualisation of machine data in kibana are not what Logstash is typically brought in for.
What can ELK Stack do that Logstash cannot?
ELK Stack covers Full-text search, Data visualization, Log aggregation, Time-series analytics. Logstash covers Data ingestion, Event parsing, Data transformation, Multiple input sources. Both handle API, Webhooks, REST, Web support.
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