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Logging · head to head

Logstash vs Splunk Enterprise

Logstash logo

Logstash

Logging

Data Processing Pipeline for Ingestion

From
Free
Rated
-
Full reviewWebsite
Splunk Enterprise logo

Splunk Enterprise

Logging

Enterprise Search, Monitoring, and Analytics

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Logstash has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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; Splunk Enterprise splunk Platform and Enterprise Security offerings carry no published rate and require contacting sales for a quote
  • They diverge on capability: Logstash covers Data ingestion, Splunk Enterprise covers Log aggregation.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Logstash and Splunk Enterprise actually diverge.

Attributes where Logstash and Splunk Enterprise differ
AttributeLogstashSplunk Enterprise
Starting priceFreeOn request
Pricing modelopen-sourceusage-based
Free tierYesNo
Founded20112003

Identical on both: platforms (Web, Api), user rating (Not yet rated), category (Logging).

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 Logstash

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

Only in Splunk Enterprise

  • Log aggregation
  • Real-time monitoring
  • Advanced analytics
  • Compliance

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.

Logstash

  • Log monitoringnot Splunk Enterprise
  • Application performancenot Splunk Enterprise
  • Security analyticsnot Splunk Enterprise
  • Troubleshootingnot Splunk Enterprise

Splunk Enterprise

  • Indexing and searching machine data and logs at enterprise scalenot Logstash
  • Security information and event management via Enterprise Securitynot Logstash
  • IT service intelligence and infrastructure observabilitynot Logstash

Where each one falls short

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

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

Splunk Enterprise

  • Splunk Platform and Enterprise Security offerings carry no published rate and require contacting sales for a quote
  • Four different pricing models are offered (activity, ingest, workload and entity based) and the applicable one depends on the product purchased
  • Published Observability Cloud rates start at $15 per host per month and are billed annually rather than monthly
  • Volume discounts are not published and require direct consultation with sales

Pricing, plan by plan

Logstash

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

Splunk Enterprise

On request
  • Starter$undefined/month
    • Log aggregation
    • Real-time monitoring
    • Advanced analytics

Which should you pick?

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

Choose Splunk Enterprise if

  • You need log aggregation.
  • You work on Web, Api.
  • You also want real-time monitoring.
Splunk Enterprise review

Questions people ask

Is Logstash or Splunk Enterprise better?
Neither clearly leads. Logstash starts at Free and Splunk Enterprise at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Logstash or Splunk Enterprise?
Logstash has a free tier; the other does not. Paid plans start at Free for Logstash and On request for Splunk Enterprise.
Does Logstash or Splunk Enterprise run on more platforms?
Both run on Web, Api, so platform support will not decide this one for you.
Can I use Logstash for free?
Yes. Logstash has a free tier, so you can try it without paying. Splunk Enterprise starts at On request.
What is Logstash best used for?
Logstash is most often used for log monitoring, application performance, security analytics, troubleshooting. Of those, log monitoring and application performance are not what Splunk Enterprise is typically brought in for.
What can Logstash do that Splunk Enterprise cannot?
Logstash covers Data ingestion, Event parsing, Data transformation, Multiple input sources. Splunk Enterprise covers Log aggregation, Real-time monitoring, Advanced analytics, Compliance. Both handle API, Webhooks, REST, Web support.

Answered from the vendors’ own pages

Logstash: How much does Logstash cost?

Logstash is free and open-source. The data processing pipeline is available to download at no charge and can be deployed without licensing costs or commercial restrictions.

Source
Splunk Enterprise: How much does Splunk Enterprise cost?

Splunk Enterprise pricing is not published online. Customers can try it free for 60 days without a credit card, but to obtain pricing for ongoing use, they must contact Splunk sales directly.

Source
Splunk Enterprise: Does Splunk Enterprise offer a free trial?

Yes, Splunk Enterprise offers a 60-day free trial that does not require a credit card to begin.

Source
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