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Networking · head to head

Splunk vs Zabbix

Splunk logo

Splunk

Networking

Turn Data Into Doing

From
On request
Rated
-
Full reviewWebsite
Zabbix logo

Zabbix

Networking

Open source infrastructure and network monitoring with distributed proxies and templating

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Zabbix has a free tier, so it costs nothing to try first.
  • Each has a real cost: Splunk no prices are published on any plan; every model requires contacting sales for an estimate; Zabbix the database is the scaling limit, and high frequency polling grows history tables fast enough that untuned installations hit housekeeping stalls and query timeouts within months.
  • They diverge on capability: Splunk covers Log aggregation, Zabbix covers Agent and agentless collection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Splunk and Zabbix actually diverge.

Attributes where Splunk and Zabbix differ
AttributeSplunkZabbix
Starting priceOn requestFree
Pricing modelquoteOpen source, no licence fee
Free tierNoYes
PlatformsWeb, ApiLinux, Docker, Kubernetes, Web
Founded2003Unknown

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

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 Splunk

  • Log aggregation
  • Real-time monitoring
  • Data visualization
  • Full-text search
  • Custom dashboards
  • Alert management
  • Anomaly detection
  • Log parsing

Only in Zabbix

  • Agent and agentless collection
  • Templates
  • Low-level discovery
  • Distributed proxies
  • Trigger expressions
  • Escalation actions

What people use each for

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

Splunk

  • Log search and analysis across infrastructurenot Zabbix
  • SIEM, SOAR and UEBA for a security operations teamnot Zabbix
  • Application performance and infrastructure monitoringnot Zabbix
  • Cloud, private cloud or on-premises deploymentnot Zabbix

Zabbix

  • A service provider monitoring thousands of customer devices where per-device commercial licensing is the largest line itemnot Splunk
  • Branch or industrial sites with unreliable links that need local collection and bufferingnot Splunk
  • Mixed estates where the same tool must poll SNMP switches, Linux hosts, Windows servers and Java applicationsnot Splunk
  • Replacing an aging Nagios installation while keeping script-based checks that already existnot Splunk

Where each one falls short

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

Splunk

  • No prices are published on any plan; every model requires contacting sales for an estimate
  • Three separate pricing models, workload, ingest and entity, so the same deployment costs different amounts depending on which was signed
  • Ingest pricing bills on data volume, so cost tracks how much you log rather than how much value you get from it
  • Security, observability and platform are priced separately

Zabbix

  • The database is the scaling limit, and high frequency polling grows history tables fast enough that untuned installations hit housekeeping stalls and query timeouts within months.
  • Initial configuration is heavy; getting useful alerting rather than noise requires understanding trigger expressions, macros and template inheritance, which is a multi-week learning curve for a team new to it.
  • The AGPLv3 change at version 7.0 affects anyone offering Zabbix over a network as part of a commercial service, and that obligation is easy to inherit accidentally during an upgrade.
  • The web interface is functional rather than pleasant, and many sites end up running Grafana alongside it purely for presentation, which is a second system to maintain.
  • Upgrades between major versions touch the database schema and can take hours on large history tables, so the maintenance window is proportional to how much data you kept.

Pricing, plan by plan

Splunk

On request
  • Observability Cloud - Infrastructure$15/month
    • Infrastructure monitoring for per host/month pricing
    • Unlimited users and ability to scale to petabytes of data
  • Observability Cloud - App & Infra$60/month
    • App and infrastructure monitoring for per host/month pricing billed annually
  • Observability Cloud - End-to-End$75/month
    • End-to-end observability for per host/month pricing billed annually
  • On-Call$5/month
    • On-call management for per user per month pricing billed annually
    • Covers up to 10 seats

Zabbix

Free
  • ZabbixFree
    • No device, node or metric limits
    • Full feature set with no paid edition of the software
    • AGPLv3 from version 7.0 onward
  • Zabbix Technical Support$undefined/year
    • Tiered subscriptions with defined response times
    • Access to Zabbix engineers for configuration and performance issues
    • Bug fix priority and backports

Which should you pick?

Choose Splunk if

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

Choose Zabbix if

  • You need agent and agentless collection.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Web.
  • You also want templates.
Zabbix review

Questions people ask

Is Splunk or Zabbix better?
Neither clearly leads. Splunk starts at On request and Zabbix at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Splunk or Zabbix?
Zabbix has a free tier; the other does not. Paid plans start at On request for Splunk and Free for Zabbix.
Does Splunk or Zabbix run on more platforms?
Splunk runs on Web, Api. Zabbix runs on Linux, Docker, Kubernetes, Web.
Can I use Zabbix for free?
Yes. Zabbix has a free tier, so you can try it without paying. Splunk starts at On request.
What is Splunk best used for?
Splunk is most often used for log search and analysis across infrastructure, siem, soar and ueba for a security operations team, application performance and infrastructure monitoring, cloud, private cloud or on-premises deployment. Of those, log search and analysis across infrastructure and siem, soar and ueba for a security operations team are not what Zabbix is typically brought in for.
What can Splunk do that Zabbix cannot?
Splunk covers Log aggregation, Real-time monitoring, Data visualization, Full-text search. Zabbix covers Agent and agentless collection, Templates, Low-level discovery, Distributed proxies.

Answered from the vendors’ own pages

Splunk: What is Splunk's pricing model?

Splunk offers activity-based, ingest, or workload pricing options depending on the product. Splunk Observability Cloud and AppDynamics use per-host or per-vCPU monthly pricing billed annually. Splunk Cloud Platform and Splunk Enterprise require custom quotes from sales.

Source
Zabbix: Is Zabbix genuinely free for commercial use?

The software has no licence fee at any scale. From version 7.0 it is AGPLv3, so offering it as a network service to third parties carries source distribution obligations.

Splunk: How much does Splunk Enterprise cost?

Splunk Enterprise pricing requires contact with sales. The vendor offers data-ingest or workload pricing options, supports unlimited users, and can scale to petabytes of data, but specific rates are not published online.

Source
Zabbix: What is the real cost of running it?

Database administration and the person who tunes it. Budget for PostgreSQL with TimescaleDB and someone who owns the retention policy.

Splunk: What are the differences between Splunk's pricing options?

Splunk offers multiple pricing models: ingest-based pricing charges according to data volume brought into the system; workload-based pricing charges based on computing resources consumed by workloads. Both models apply to Splunk Enterprise and Splunk Cloud Platform. Standard support is included with product purchases; premium support is available as an add-on.

Source
Zabbix: How does it compare to a commercial per-device tool?

It removes the licence line entirely and adds an operations line. Below a few hundred devices the commercial tool is often cheaper in total; above that Zabbix wins clearly.

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