Grafana vs Netdata
Pick Grafana for a complete observability platform — querying across Prometheus, Loki, and Influx, custom dashboards, and alerting for many services in one view. Pick Netdata when you want deep per-host metrics with almost no setup: install one agent and get second-by-second dashboards out of the box.
Side by side
Grafana and Netdata are often grouped under "monitoring," but they solve different halves of the problem. Grafana is an observability platform: it sits on top of data sources like Prometheus, Loki, and InfluxDB and turns them into unified dashboards and alerts. Netdata is a per-host agent: install it and it collects thousands of metrics about that one machine, rendering second-by-second charts with zero configuration. They overlap enough to feel like rivals and complement enough that a real stack often runs both.
Dashboards you build vs. dashboards you get
Grafana is the query-and-visualization layer. It doesn't collect much on its own; its power is connecting — pulling metrics from Prometheus, logs from Loki, traces from Tempo, and anything else from InfluxDB, Postgres, and hundreds of other sources into one pane of glass. You build the dashboards, the alert rules, and the user permissions, which makes it the natural center of a multi-service setup. That power costs a 2 / 5 difficulty rating and a 1 GB RAM floor for the server.
Netdata is the opposite: install one C-based agent and it immediately serves real-time, per-second dashboards for CPU, memory, disk, network, and system services — 2,000+ metrics out of the box, no database to design and no dashboards to build. It's staggeringly light (256 MB RAM), rates a 1 / 5 to deploy, and is the fastest path from empty server to a live health view. The trade-off is scope: Netdata's home is one host, and while it can stream data outward, it is not a platform for querying many heterogeneous systems.
The data-source model
The practical difference is where the data lives. Grafana is only as useful as the backends you attach — in the classic Prometheus stack that means a time-series database to store and query, with Grafana as the front door. That's more moving parts, but it gives you long retention, arbitrary querying, and alerting across your entire fleet in one place.
Netdata collects everything locally, so there's no storage tier to operate and nothing to query manually — the agent holds rolling per-second data and renders it. When you outgrow single-host views, Netdata can stream to a parent node or forward to a backend like Prometheus, which is exactly where it plugs into a Grafana setup.
Why you often end up running both
They're complementary in a way that explains why so many homelabs and small teams run both: Netdata as the agent giving instant deep metrics on each machine, Grafana (usually with Prometheus or Loki behind it) as the unified dashboard and alerting surface across the whole fleet. Netdata's streaming forwarder lets its data flow into the same Prometheus backend Grafana queries, so the two "competitors" close the loop cleanly.
Licensing and the license nuance
Grafana is AGPL-3.0 and the Netdata agent is GPL-3.0 — copyleft licenses that matter mostly if you redistribute them as part of a commercial product. The nuance is Netdata's dashboard: the agent is open source, but the Netdata UI it serves is closed-source, free-to-use software under Netdata's own NCUL1 license. For self-hosting for your own team or organization, neither license imposes practical constraints.
Running either on a VPS
Both fit comfortably on the boxes in this guide. Netdata's 256 MB footprint means it can ride along on almost any existing server without crowding out the services you're actually monitoring. Grafana's 1 GB server pairs naturally with a small time-series backend on the same VPS. Start with Netdata on each host when you want instant visibility; add Grafana when you want one dashboard over everything and centralized alerting.
Pick Grafana if…
- You want one dashboard over many systems — Prometheus, Loki, InfluxDB, and more — with unified alerting and access control.
- You're building a centralized observability platform across multiple hosts and services.
- You want to build and own your dashboards and query layer rather than accept per-host views.
Pick Netdata if…
- You want deep per-host metrics with zero setup — install the agent, dashboards appear, no database to design.
- You value the lightest footprint (256 MB) so monitoring doesn't crowd out your apps.
- You're monitoring one or a few machines and don't need a multi-source query platform yet.
Common questions
Grafana vs Netdata — which should I pick?
Pick Grafana if you want one dashboard over many systems — it queries Prometheus, Loki, InfluxDB, and SQL sources, so it's the natural center of a multi-service observability setup. Pick Netdata when you want deep, per-second metrics on one or two hosts with zero configuration.
Do Grafana and Netdata compete or complement?
Both, depending on scope. Netdata is an agent that collects and renders its own real-time dashboards; Grafana is a query-and-dashboard platform that needs data sources. A common stack runs Netdata's agent and points its data at a backend Grafana can query.
Which is lighter to run?
Netdata is dramatically lighter — 256 MB RAM as an agent, versus Grafana's 1 GB for the dashboard server. For a single small VPS, Netdata's footprint leaves far more room for the services you're actually monitoring.
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