Netdatavs
Zabbix
Zabbix: Pick Zabbix when you need SNMP polling of network hardware, long retention and escalation workflows rather than dense host telemetry.
Netdata
Per-second metrics collection with automatic dashboards and on-node anomaly detection
As of 30 August 2026, Netdata is free to use. A monitoring agent that installs on a host, discovers what is running and produces per-second charts within a minute, doing anomaly detection at the edge rather than in a central time series database. Softwr lists it under Networking. Netdata is made by Netdata Inc., available on Linux, macOS, FreeBSD, Docker.
Overview
What Netdata does
Netdata runs an agent on each node that collects thousands of metrics at one-second resolution, autodetects hundreds of common services without configuration, stores data locally in a tiered database engine, and trains machine learning models per metric on the node itself to flag anomalies. Nodes can stream to a parent for retention and aggregation, and Netdata Cloud provides a single view across a fleet without centralising the raw metrics. The distinguishing decision is that processing stays at the edge. There is no ingestion pipeline to size, no central store to shard and no per-metric ingest cost, because each node holds its own history and the aggregation layer queries them. That inverts the economics of high-cardinality monitoring, where hosted vendors bill per metric or per series and a chatty Kubernetes cluster produces an unpleasant invoice. It also means retention is bounded by disk on the node unless you build a parent tier. The licensing detail buyers should know is that the agent is GPLv3 but the dashboard interface shipped since version 1.41 is under a restrictive Netdata licence and is served from Netdata infrastructure by default. The software is not fully open source in the way its reputation suggests, and air-gapped installations need deliberate configuration to serve the interface locally. Buyers are platform and SRE teams that want dense host visibility fast; the trade-off is that Netdata is excellent at what is happening on a node right now and weaker as a long-horizon capacity planning archive.
What people use it 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
Related searches
The honest half
Where it falls short
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about 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.
Cross-shopped
What people choose instead of Netdata
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.
Pricing
What Netdata costs
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Netdata Agent
Free
- GPLv3 agent with unlimited nodes
- Per-second metrics and edge anomaly detection
- Local dashboards and alerting
- Community support
Netdata Cloud paid tiers
On request
- Per-node subscription for fleet management features
- Role based access control and longer alert history
- Business and enterprise support options
- Priced per node, published on the vendor site
Capabilities
Features
Per-second collection
One-second resolution metrics as the default rather than a premium tier
Zero-configuration discovery
Autodetects hundreds of services, containers and system subsystems on install
Edge machine learning
Trains anomaly models per metric on the node and flags deviation without a central service
Tiered database engine
Local storage with automatic downsampling across retention tiers
Streaming and replication
Children stream to parent nodes for centralised retention and high availability
Health alarms
Preconfigured alert templates per service with node-local evaluation
Answered, with sources
Questions people ask
Each answer names the page it came from, so you can check it rather than take our word for it.
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.
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.
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.
Keep looking
Where to go from Netdata
- Netdata alternativesEvery product people weigh against it
- Netdata pricingPlans, floors and what the tiers exclude
- Netdata badgesWhich rules it meets, and the figure behind each
- All Networking softwareThe full category
- Best Networking softwareThe shortlist, and how it was cut
Best Networking software for
Compare Netdata with
- Zabbix
- Traefik
- Prometheus
- Eclipse Mosquitto
- ngrok
- Tailscale
- PRTG Network Monitor
- NetBird
- Icinga
- MikroTik RouterOS
- Headscale
- Nebula
- Domotz
- HiveMQ
- OPNsense
- ThousandEyes
- Zabbix
- Headscale
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Softwr does not host reviews and shows no star rating for Netdata, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
More on Netdata
Netdata alternatives
What people switch to, and what they give up
Netdata pricing
Every tier, and where the cost actually lands
Compare Netdata
Put it head to head with anything we hold
Netdata badge
Its rating, and an embed for your own site
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