Grafana + Prometheus vs Netdata
Both are alternatives to Datadog. Here's how they stack up — verified facts, no spin.
Also searched as Netdata vs Grafana + Prometheus — same comparison, one verdict.
Grafana + Prometheus and Netdata are closely matched on ownership (90 vs 85) — this one comes down to pricing and to which trade-offs below you can live with.
Grafana + Prometheus
TOP PICKThe open-source observability standard.
Prometheus scrapes and stores metrics; Grafana visualizes them (and logs and traces via Loki and Tempo). Together they are the de-facto open-source monitoring stack, fully self-hostable.
Netdata
Real-time, per-second monitoring with zero-config auto-discovery.
Netdata delivers high-resolution, real-time metrics with automatic discovery and minimal configuration, ideal for fast, granular infrastructure visibility on your own machines.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| Grafana + Prometheus | Netdata | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 90 | 85 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first data | Yes | Yes |
| License | AGPL-3.0 (Grafana) / Apache-2.0 (Prometheus) | GPL-3.0 |
| Pricing | Free / self-host | Free / self-host; optional paid cloud |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | 8 GB | 1 GB per monitored node |
| Realistic running costWhat the box costs each month if you run it yourself. | $30–60/mo for a stack monitoring 20–50 hosts, against several hundred on Datadog for the same estate | $6/mo for a parent node collecting from agents, against per-host APM pricing that starts around $15 per host per month |
| Setup timeHonest first-install estimate, not the marketing quickstart. | A day for the stack, a week before the dashboards are genuinely useful | 15 minutes — one install script and it is already collecting |
| Ongoing maintenanceThe part nobody budgets for. | Real. You own retention policy, cardinality, alert-rule hygiene and upgrades. This is the piece people underestimate: expect a few hours a month once it matters. | Low. The defaults are unusually good; the work is deciding retention and alert routing. |
Grafana + Prometheus is Macrostack's recommended Datadog alternative, so it's our pick here.
Weighing both against staying on Datadog? Is Datadog free? What it actually costs →
Grafana + Prometheus
Strengths
- +Industry-standard, huge ecosystem
- +Metrics, logs, and traces via the same UI
- +Enormous community and dashboards
Trade-offs
- −You assemble and operate the stack
- −Steeper initial setup than a SaaS agent
Netdata
Strengths
- +Per-second resolution out of the box
- +Auto-discovers most services
- +Very low setup effort
Trade-offs
- −Less of a long-term query store than Prometheus
- −Best paired with other tools for logs/traces
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose Grafana + Prometheus
if a lower exit cost matters more to you than any single feature, and industry-standard, huge ecosystem.
Choose Netdata
if per-second resolution out of the box.
Neither, yet
if both carry a real cost you should weigh first — you assemble and operate the stack, and less of a long-term query store than Prometheus. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
Self-hosting Grafana + Prometheus
8 GB RAM · A day for the stack, a week before the dashboards are genuinely useful
$30–60/mo for a stack monitoring 20–50 hosts, against several hundred on Datadog for the same estate
Self-hosting Netdata
1 GB per monitored node RAM · 15 minutes — one install script and it is already collecting
$6/mo for a parent node collecting from agents, against per-host APM pricing that starts around $15 per host per month
Grafana + Prometheus vs Netdata — common questions
Is Grafana + Prometheus a better fit than Netdata for observability & monitoring?
It depends on what you are optimising for, and the honest split is this: Grafana + Prometheus scores 90 to Netdata's 85 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. Netdata earns its place on a different axis — per-second resolution out of the box. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
Grafana + Prometheus keeps its data local or in open formats, so leaving is an export rather than a negotiation. Netdata is still self-hostable, so the files stay on your server either way — but it is not local-first by design, so check what its export produces before you rely on it.
Can I self-host Grafana + Prometheus or Netdata?
Both can be self-hosted. The difference is what it costs you in time rather than whether it is possible — see the setup and maintenance rows above.
Are Grafana + Prometheus and Netdata both alternatives to Datadog?
Yes — both appear in our Datadog comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off Datadog and now choosing between the two replacements, which is a narrower and much easier question.
Related alternative guides
Facts verified 2026-07-12. Licenses and pricing change — spotted something out of date? That's a correction we want.