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Nagios alternative for server monitoring?

A simpler, modern alternative to Nagios, with unified metrics, logs, and alerts.

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No credit card required

Simple Observability vs. Nagios

A quick look at how we compare

Simple Observability
Nagios
Fully-managed free tier available
✓
✕
Unified metrics + logs
✓
✕
No open ports required
✓
✕
Mobile-friendly web app
✓
✕
Ready-to-use alert templates
✓
✕
One-command install
✓
✕
Get Started

Start monitoring your server with one single command

No agents to configure. No databases to set up. No dashboards to build.

Create an account to get your server key, then run the command below. You'll start seeing metrics and logs in seconds, with smart defaults and alerts already set up.

curl -fsSL https://simpleobservability.com/install.sh | sudo bash -s -- <SERVER KEY>

With us, server monitoring is easy

01

Install the agent

Download and install our open-source agent with a single command.
02

Configure from the UI

Manage everything from the web interface. No config files needed.
03

Get instant insights

Access ready-to-use reports and alerts that show exactly what’s going on with your servers, in real time.

Complete observability, simplified

Simple Observability delivers all essential monitoring capabilities in one streamlined package. We've eliminated the complexity while keeping the powerful features you need to maintain reliable systems.

Stop cobbling together multiple tools and managing complicated stacks.

Customizable Graphs
In addition to ready-to-use reports, create custom visualizations tailored to your specific monitoring needs.
Query Your Data
Powerful search functionality to find specific metrics and logs across your entire infrastructure.
Alerts
Configure precise alert conditions for events that matter to your operations. Get notified when thresholds are crossed.
Webhooks
Connect alerts to your existing workflow. Integrations with Discord, Slack, email, SMS, and more ensure notifications reach you wherever you work.
Mobile App
Progressive Web App to monitor your servers from anywhere. Keep your infrastructure at your fingertips.
Automatic Updates
Our agent automatically updates itself with the latest features and security patches. No maintenance required on your part.
Clear Pricing
Fixed pricing with no surprises. No usage-based charges, no worrying about log volume spikes. What you see is what you pay
Support
Whether you're running mainstream Linux distros or the most esoteric OS variants, our team will help you get monitoring up and running.

Simple Monitoring. Simple Pricing

No credit card required
Lite
Free plan for one server. Ideal for testing, development, or low-traffic workloads.
Free
for 1 server
Start For Free
  • ● 50 metrics per server
  • ● Low log volume
  • ● Single server
Standard
For growing infrastructures. Includes 3 servers, scalable to unlimited.
$9 / month
for 3 servers (+ $3 per extra server)
Get Started
  • ● 100 metrics per server
  • ● High log volume
  • ● Include 3 servers
Advanced
For large-scale deployments and high-volume monitoring. Includes 5 servers, scalable to unlimited.
$21 / month
for 5 servers (+ $4 per extra server)
Get Started
  • ● 200 metrics per server
  • ● Higher log volume
  • ● Include 5 servers
Custom & Enterprise Plans
For very large infrastructures, higher log volumes, or custom requirements, we offer tailored pricing plans.
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