Best Free Host Metrics Tools

Observability platform — Logs: 500 MB/day ingestion, 7-day retention. Monitoring: 3 hosts, 3 containers/host, 30-min data retention, 1 alert rule. Volume-based pricing, no per-host charges on paid plans

Listed in Monitoring, and on this page because we labelled it host_metrics. We read that on 2026-09-01 from https://sematext.com/pricing, where it says: “install the agent Sematext will start providing valuable performance insights.”. How we use this

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-10-04, found the same terms as an earlier read we had declined to record. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Netdata is an open-source tool to collect real-time metrics. It's a growing product and can also be found on GitHub! When we last read the page we cite for this offer, on 2026-10-01, we found no earlier figure of ours for the page to have narrowed, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it host_metrics. We read that on 2026-09-01 from https://www.netdata.cloud/, where it says: “Metrics Management eBPF Monitoring”. How we use this

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-10-01, found no earlier figure of ours for the page to have narrowed. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Uptime and status page monitoring — free plan: 20 monitors (HTTP, port, ping, keyword), 5-minute check interval, 1 basic status page with real-time updates and subscriber notifications, 1 seat, 1 server monitoring agent, email and webhook alerts

Listed in Monitoring, and on this page because we labelled it host_metrics. We read that on 2026-09-01 from https://hyperping.com/pricing, where it says: “SERVER MONITORING Server agents A lightweight agent that reports CPU, memory, disk and network from your servers.”. How we use this

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-10-03, found a change we then refused to record, because it restated the terms we already publish. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

Infrastructure monitoring free for up to 5 hosts with 1-day metric retention

Listed in Monitoring, and on this page because we labelled it host_metrics. We read that on 2026-09-01 from https://www.datadoghq.com/pricing/, where it says: “Standard Events and Metrics Up to 5 hosts”. How we use this

• −1 stale_verification We cannot confirm this offer: 5 consecutive re-check attempts have failed (most recently 2026-10-08 — The pricing page does not explicitly state the free tier details (5 hosts, 1-day retention) for infrastructure monitoring. It mentions Infrastructure Monitoring as a product but doesn't detail the free tier limits. It only states 'Pricing Flexible, transparent pricing designed to scale with your business Multi-Year/Volume discounts available Free Trial Contact Us'.), never confirmed since it was indexed. This is our inability to verify, not a change by the vendor. (a limit of ours, not a change by the vendor)

Superseded: As of 2026-08-28, xitoring.com reads: The page offers a 14-day free trial, and then paid plans starting at $4.99/mo for Uptime + SSL. We are not publishing our stored Xitoring.com terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓

Listed in Monitoring, and on this page because we labelled it host_metrics. We read that on 2026-09-01 from https://xitoring.com/, where it says: “HTTP(S), DNS, TCP, UDP, Ping, and mail server monitoring.”. How we use this

• −3 free_tier_withdrawn Recorded free tier removal on 2026-08-28: The page highlights a 14-day free trial, and then lists paid plans starting at $4.99/mo. Unconfirmed. We could not check this change against an archived copy of Xitoring.com's page, so it does not count toward the rating. Source: https://xitoring.com/

Linux server monitoring with real-time dashboards and alerting — no permanent free tier. 14-day free trial with no credit card required; paid plans from €19/month. Note — 2026-05-15: fivenines.io removed its Free plan (5 monitors, 1 team member, 1 month of data retention) between the archived copies of its site from 2026-05-13 and 2026-05-15. Paid plans now start at €19 a month, with a 14-day free trial. Source ↗

Listed in Monitoring, and on this page because we labelled it host_metrics. We read that on 2026-09-01 from https://fivenines.io/, where it says: “Server metrics via the open-source agent on Linux and Windows.”. How we use this

• −3 free_tier_withdrawn Recorded free tier removal on 2026-05-15: fivenines.io removed its Free plan (5 monitors, 1 team member, 1 month of data retention) between the archived copies of its site from 2026-05-13 and 2026-05-15. Paid plans now start at €19 a month, with a 14-day free trial. Source: https://fivenines.io/
• −2 time_limited_offer Tier "Trial" is a trial that expires, not an ongoing free tier.
• −1 stale_verification Our last read of the vendor's pricing page, on 2026-10-02, found a change we then refused to record, because it named no figure that had moved. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)