Available on the Microsoft Store

Know Your Network.
Instantly.

HostMonitor watches your hosts and services around the clock — ICMP pings, TCP port checks, UDP probes, HTTP/HTTPS — and alerts you the moment something goes wrong.

Download See Features
HostMonitor main window — hosts list with groups and protocol status columns

Everything you need to monitor your network

Built for sysadmins, developers, and home lab enthusiasts who need reliable, lightweight host monitoring on Windows.

Real-Time Status Grid

Monitor all your hosts in one glanceable table. Color-coded cells show available, timeout, and refused states at a glance.

Latency Charts & Stats

Per-host statistics window with min/avg/max latency sparklines. Historical data persisted in a local SQLite database.

Five Probe Protocols

ICMP, TCP, UDP, HTTP, and HTTPS. Protocol-aware UDP payloads for DNS, NTP, SNMP, OpenVPN, and IKEv2/IPSec.

Smart Alarms

Three alarm modes: fire on every outage, once per outage, or only after N consecutive failures to cut through noise.

Host Groups

Organize hosts into logical groups — Production, Staging, Dev, or any category that fits your infrastructure.

System Tray & Notifications

Minimize to tray and keep monitoring silently. Native Windows notifications pop up the moment a host goes down.

Four UI Themes

Blue, Green, Lavender, and System themes. System mode tracks your Windows accent color automatically.

7 Languages

English, German, Spanish, French, Italian, Polish, and Ukrainian — all bundled, no extra downloads required.

Local SQLite Storage

All history stays on your machine. No cloud, no sign-up, no subscriptions. Your data is entirely yours.

See it in action

A look at the actual application — the monitoring grid, per-host statistics, and the target setup dialog.

Main monitoring window with host groups and per-protocol status columns

Main window — hosts organized into groups with per-protocol status columns and uptime percentages.

Per-host statistics window showing latency chart and probe history

Statistics window — per-host latency chart with min/avg/max breakdown and full probe history.

Add New Target dialog with service catalogue and monitoring options

Add New Target — enter a hostname, assign a group, pick services from the catalogue, and configure per-host alarm and scan settings.

Five probe protocols. One tool.

From a simple ICMP ping to a full HTTP response-body check — HostMonitor covers the range of probes you actually need.

ICMP

Ping / Echo Request

Classic latency probe. Confirms basic IP reachability without requiring open ports.

TCP

TCP Port Connect

Non-blocking connect to any port with configurable timeout. Covers SSH, RDP, databases, SMTP, and more.

UDP

Protocol-Aware UDP Probes

Sends well-formed payloads for DNS, NTP, SNMP, OpenVPN, and IKEv2/IPSec — not a blind port knock.

HTTP / HTTPS

HTTP / HTTPS

Verifies expected status codes and optionally matches a pattern in the response body. Catches broken apps that still have open TCP ports.

UDP Protocol Payloads
PortProtocolPayload
53DNSA-query for root zone
123NTPNTPv3 client request
161, 162SNMPSNMPv1 GetRequest
500IKEv2 / IPSecIKE_SA_INIT (AES-CBC-128)
1194OpenVPNP_CONTROL_HARD_RESET_V2
4500IKEv2 NAT-TNon-ESP marker + IKE_SA_INIT
anyGenericSingle zero byte

Alerts that fit your workflow

Pick the alarm mode that matches how noisy or quiet you want your monitoring to be.

1

Every Outage

Fires an alert for each failed probe. Maximum visibility — best for critical, low-traffic services.

2

Once Per Outage

Sounds once when a host goes down, then stays silent until it recovers. No repeated alarms for the same incident.

3

After N Consecutive Failures

Wait for N back-to-back failures before alerting. Perfect for flaky hosts that occasionally drop a probe.

Host statistics window with latency chart

Four built-in themes

Switch themes instantly from Preferences. The System theme tracks your Windows accent color automatically.

Blue
Green
Lavender
System

Available in 7 languages

Switch languages from Preferences — all translations ship with the app, no downloads required.

🇺🇸 English
🇩🇪 Deutsch
🇪🇸 Español
🇫🇷 Français
🇮🇹 Italiano
🇵🇱 Polski
🇺🇦 Українська

Start monitoring in minutes

No account required. Your data stays entirely on your machine.

Download from Microsoft Store

Windows 10 / 11  ·  v1.0.0