Easiest Monitoring & Status to self-host

Uptime Kuma

Monitoring & Status

Easy self-hosted uptime monitoring tool

Replaces Pingdom, UptimeRobot

Grafana

Monitoring & Status

Open observability dashboards and visualization

Replaces Datadog

Prometheus

Monitoring & Status

Metrics-based monitoring and alerting toolkit

Replaces Datadog

GitHub-powered uptime monitor and status page

Replaces Statuspage, Pingdom

Static status page based on Hugo and Markdown

Replaces Statuspage

Netdata

Monitoring & Status

Real-time per-second infrastructure monitoring

Replaces Datadog, New Relic

Glances

Monitoring & Status

Cross-platform system monitoring at a glance

Replaces Datadog

Beszel

Monitoring & Status

Lightweight server monitoring with a clean hub

Replaces UptimeRobot

cAdvisor

Monitoring & Status

Container resource usage and performance analysis

Replaces Datadog

Dozzle

Monitoring & Status

Real-time log viewer for Docker containers

Replaces Datadog Logs

GoAccess

Monitoring & Status

Real-time web log analyzer and interactive viewer

Replaces Google Analytics

Plugin-driven server agent for collecting metrics

Replaces Datadog Agent

Gatus

Monitoring & Status

Developer-oriented health dashboard and status page

Replaces UptimeRobot, Pingdom

Checkmate

Monitoring & Status

Open-source uptime and infrastructure monitoring tool

Replaces Pingdom, Better Uptime

Prometheus exporter for hardware and OS metrics

Replaces Datadog Agent

Healthchecks

Monitoring & Status

Cron job and scheduled task monitoring

Replaces Pingdom

NetAlertX

Monitoring & Status

Network presence scanner and intrusion detection

Replaces Fing

Self-hosted monitoring of Proxmox and infrastructure

Replaces Datadog

Scrutiny

Monitoring & Status

Web dashboard for hard drive SMART health monitoring

Replaces CrystalDiskInfo

Speedtest Tracker

Monitoring & Status

Tracks internet connection speed over time on a dashboard

Replaces Speedtest.net

Probes endpoints over HTTP, TCP, DNS, and ICMP

Replaces Pingdom

Kener

Monitoring & Status

Modern status page system built with SvelteKit

Replaces Statuspage, Better Uptime

Self-hosted error tracking that is simple to run

Replaces Sentry, Bugsnag

Prometheus exporter for Redis server and cluster metrics

Replaces Datadog Redis, RedisInsight

Prometheus exporter for PostgreSQL server metrics

Replaces Datadog PostgreSQL, pganalyze

Push acceptor for ephemeral and batch job metrics

Replaces Datadog

Alert dashboard for Prometheus Alertmanager

Replaces PagerDuty

Prometheus exporter for Apache Kafka brokers and consumer lag

Replaces Confluent Control Center, Datadog Kafka

Official Prometheus exporter for MySQL and MariaDB

Replaces Datadog MySQL, VividCortex

Prometheus exporter for Elasticsearch cluster metrics

Replaces Elastic Stack Monitoring, Datadog Elasticsearch

Official Prometheus exporter for NGINX and NGINX Plus

Replaces Datadog NGINX, New Relic NGINX

Domain Locker

Monitoring & Status

Track domain expiry, DNS, and SSL certificate health

Replaces DNSstuff

Modern status page frontend powered by Uptime Kuma data

Replaces StatusPage, Instatus

Prometheus exporter that probes latency like Smokeping

Replaces SmokePing, PingPlotter

Prometheus exporter for ICMP ping round-trip metrics

Replaces PingPlotter, ThousandEyes

Prometheus exporter for Apache HTTP Server metrics

Replaces Datadog Apache, New Relic Apache

Self-hosted uptime monitoring and status page service

Replaces Pingdom, Better Uptime

Synthetic monitoring with HTTP probes from config

Replaces Pingdom, Datadog Synthetics

Prometheus exporter for internet speed test results

Replaces Speedtest.net

Lightweight network IP scanner with web UI

Replaces Fing, Angry IP Scanner

Mailrise

Monitoring & Status

SMTP gateway that forwards email alerts to push services

Replaces PagerDuty

Status page and monitoring server

Replaces UptimeRobot, Pingdom

Prometheus exporter for PHP-FPM process pool metrics

Replaces New Relic PHP, Datadog APM

Simple PHP tool for monitoring servers and websites

Replaces Pingdom, UptimeRobot

Unified monitoring wallboard for builds and services

Replaces Datadog

Status page and uptime monitor with a clean UI

Replaces StatusPage, UptimeRobot

Lightweight self-hosted status page and uptime monitor

Replaces StatusPage, Better Uptime

Lunalytics

Monitoring & Status

Simple self-hosted website and service uptime monitor

Replaces Pingdom, Better Uptime

Munin

Monitoring & Status

Networked resource monitoring with plug-and-play graphs

Replaces Datadog

Monitor Fail2Ban and manually ban / release IP's

Process supervision and self-healing system monitoring

Replaces Datadog