Node Exporter vs Process Exporter

A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up? Compare Node Exporter with Compare Process Exporter with

NO Node Exporter Prometheus exporter for hardware and OS metrics VS PR Process Exporter Prometheus exporter for per-process metrics

Feature	Node Exporter	Process Exporter
Deploy effort	Under-an-hour setup	Under-an-hour setup
Health score	94 · Excellent	25 · At risk
Category	Monitoring & Status	Monitoring & Status
License	Apache-2.0	MIT
Language	Go	Go
Setup difficulty	Easy	Medium
Min. RAM	32 MB	64 MB
Deployment	docker, kubernetes, binary	docker, binary
GitHub stars	★ 13,804	★ 2,155
First released	2015	2016
Replaces	Datadog Agent	Datadog Agent

What are Node Exporter and Process Exporter?

Node Exporter

Node Exporter exposes a wide variety of hardware and operating system metrics from Unix-like systems for Prometheus to scrape. It is the de facto standard for host-level monitoring in the Prometheus ecosystem.

CPU, memory, disk, and network metrics
Many collector modules
Tiny resource footprint
Standard Prometheus exporter

Read the full Node Exporter guide →

Process Exporter

process-exporter exposes per-process and per-process-group CPU, memory, and IO metrics for Prometheus. It enables fine-grained resource attribution on busy hosts.

Per-process metrics
Process group aggregation
CPU, memory, IO data
Prometheus compatible

Node Exporter vs Process Exporter: key differences

Both projects are written in Go. Licensing differs — Apache-2.0 for Node Exporter versus MIT for Process Exporter. Node Exporter is the lighter option, starting around 32 MB of RAM against 64 MB for Process Exporter. Node Exporter has the considerably larger community, at 13,804 GitHub stars versus 2,155.

Why pick each one

Choose Node Exporter if…

Essential for host monitoring
Extremely reliable

Watch out for

Host metrics only
Requires Prometheus and Grafana

Node Exporter details

Choose Process Exporter if…

Released under the MIT license
First-class Docker support for quick deployment
Active community (2.2k GitHub stars)
Written in Go

Process Exporter details

Frequently asked questions

Is Node Exporter or Process Exporter better?

Node Exporter is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Process Exporter if its specific feature set fits your needs better.

Are Node Exporter and Process Exporter free and open-source?

Yes. Node Exporter is licensed under Apache-2.0 and Process Exporter under MIT. Both can be self-hosted at no software cost.

Can I run Node Exporter and Process Exporter with Docker?

Node Exporter: yes. Process Exporter: yes.

Which is lighter on resources, Node Exporter or Process Exporter?

Node Exporter has the smaller minimum footprint at 32 MB of RAM, compared to about 64 MB for Process Exporter. Real-world usage depends on library size, user count, and enabled features.