Networking · head to head
Netdata vs Splunk
Netdata
Networking
Per-second metrics collection with automatic dashboards and on-node anomaly detection
- From
- Free
- Rated
- -
The short version
- Only Netdata has a free tier, so it costs nothing to try first.
- Each has a real cost: Netdata the dashboard interface is under a restrictive Netdata licence rather than GPL and is served from Netdata infrastructure by default, so the deployment is not fully self-contained without extra configuration.; Splunk no prices are published on any plan; every model requires contacting sales for an estimate
- They diverge on capability: Netdata covers Per-second collection, Splunk covers Log aggregation.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Netdata and Splunk actually diverge.
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 Netdata
- Per-second collection
- Zero-configuration discovery
- Edge machine learning
- Tiered database engine
- Streaming and replication
- Health alarms
Only in Splunk
- Log aggregation
- Real-time monitoring
- Data visualization
- Full-text search
- Custom dashboards
- Alert management
- Anomaly detection
- Log parsing
What people use each for
The jobs each tool is most often brought in to do.
Netdata
- Diagnosing a short-lived performance incident where one-minute averages hide the spike entirelynot Splunk
- Kubernetes clusters where per-series billing from a hosted vendor has become the largest observability costnot Splunk
- Adding dense host visibility to an estate that already has Prometheus for application metricsnot Splunk
- Small teams with no monitoring engineer who need working dashboards on the day of installationnot Splunk
Splunk
- Log search and analysis across infrastructurenot Netdata
- SIEM, SOAR and UEBA for a security operations teamnot Netdata
- Application performance and infrastructure monitoringnot Netdata
- Cloud, private cloud or on-premises deploymentnot Netdata
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Netdata
- The dashboard interface is under a restrictive Netdata licence rather than GPL and is served from Netdata infrastructure by default, so the deployment is not fully self-contained without extra configuration.
- Retention is limited by disk on each node unless you build and maintain a parent tier, which makes it a poor archive for year-over-year capacity planning.
- Per-second collection consumes noticeable CPU and memory on small or heavily loaded nodes, and on constrained edge hardware the monitoring becomes part of the problem.
- Default alerting is generous and fires on conditions many teams consider normal, so the first weeks involve pruning alarms rather than responding to them.
- Fleet-level features that make it usable across hundreds of nodes sit in Netdata Cloud, so the free agent alone leaves you visiting individual node dashboards.
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
Pricing, plan by plan
Netdata
Free- Netdata AgentFree
- GPLv3 agent with unlimited nodes
- Per-second metrics and edge anomaly detection
- Local dashboards and alerting
- Netdata Cloud paid tiers$undefined/month
- Per-node subscription for fleet management features
- Role based access control and longer alert history
- Business and enterprise support options
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
Which should you pick?
Choose Netdata if
- You need per-second collection.
- You want to start without paying.
- You work on Linux, macOS, FreeBSD, Docker, Kubernetes, Windows.
- You also want zero-configuration discovery.
Choose Splunk if
- You need log aggregation.
- You work on Web, Api.
- You also want real-time monitoring.
Questions people ask
- Is Netdata or Splunk better?
- Neither clearly leads. Netdata starts at Free and Splunk at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Netdata or Splunk?
- Netdata has a free tier; the other does not. Paid plans start at Free for Netdata and On request for Splunk.
- Does Netdata or Splunk run on more platforms?
- Netdata runs on Linux, macOS, FreeBSD, Docker, Kubernetes, Windows. Splunk runs on Web, Api.
- Can I use Netdata for free?
- Yes. Netdata has a free tier, so you can try it without paying. Splunk starts at On request.
- What is Netdata best used for?
- Netdata is most often used for diagnosing a short-lived performance incident where one-minute averages hide the spike entirely, kubernetes clusters where per-series billing from a hosted vendor has become the largest observability cost, adding dense host visibility to an estate that already has prometheus for application metrics, small teams with no monitoring engineer who need working dashboards on the day of installation. Of those, diagnosing a short-lived performance incident where one-minute averages hide the spike entirely and kubernetes clusters where per-series billing from a hosted vendor has become the largest observability cost are not what Splunk is typically brought in for.
- What can Netdata do that Splunk cannot?
- Netdata covers Per-second collection, Zero-configuration discovery, Edge machine learning, Tiered database engine. Splunk covers Log aggregation, Real-time monitoring, Data visualization, Full-text search.
Answered from the vendors’ own pages
Netdata: Is Netdata fully open source?
The agent is GPLv3. The current dashboard interface is under a separate restrictive licence, so the complete product is open core rather than open source.
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.
SourceNetdata: Can it run without any connection to Netdata Cloud?
Yes, agents work standalone and dashboards can be served locally, but you lose fleet-wide views and need to configure local interface serving deliberately.
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.
SourceNetdata: Does it replace Prometheus?
For host and container infrastructure metrics it often does. For custom application metrics with an existing exporter ecosystem and long retention, most teams keep both.
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.
SourceRelated pages
Other head to heads
- Netdata vs Zabbix
- Netdata vs Traefik
- Netdata vs Prometheus
- Netdata vs Eclipse Mosquitto
- Netdata vs ngrok
- Netdata vs Tailscale
- Netdata vs PRTG Network Monitor
- Netdata vs NetBird
- Netdata vs Icinga
- Netdata vs MikroTik RouterOS
- Netdata vs Headscale
- Netdata vs Nebula
- Netdata vs Domotz
- Netdata vs HiveMQ
- Netdata vs OPNsense
- Netdata vs ThousandEyes
- Netdata vs Grafana
- Netdata vs Cloudflare
- Netdata vs Consul
- Netdata vs Auvik
- Netdata vs OpenVPN
- Netdata vs ZeroTier
- Netdata vs Ivanti
- Netdata vs Ubiquiti UniFi
- Splunk vs Zabbix
- Splunk vs Traefik
- Splunk vs Prometheus
- Splunk vs Eclipse Mosquitto
- Splunk vs ngrok
- Splunk vs Tailscale
- Splunk vs PRTG Network Monitor
- Splunk vs NetBird
- Splunk vs Icinga
- Splunk vs MikroTik RouterOS
- Splunk vs Headscale
- Splunk vs Nebula
- Splunk vs Domotz
- Splunk vs HiveMQ
- Splunk vs OPNsense
- Splunk vs ThousandEyes
- Splunk vs Grafana
- Splunk vs Cloudflare
- Splunk vs Consul
- Splunk vs Auvik
- Splunk vs OpenVPN
- Splunk vs ZeroTier
- Splunk vs Ivanti
- Splunk vs Ubiquiti UniFi