Best Self-hosted Monitoring & Observability tools in 2026

Self-hosted tool that auto-discovers system and container ports, maps services in real time, and helps prevent port conflicts across servers via a web dashboard.

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Device42+9

Self-hosted error tracking for developers with full stack traces, local variables, and drop-in compatibility with Sentry SDKs for many languages and frameworks.

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Sentry+5

Open-source web app to collect, process, store, and visualize energy, temperature, and other environmental time-series data with dashboards, graphs, and an API.

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InfluxDB Cloud+14

Self-hosted infrastructure dashboard to inventory servers, organize app quick links, and track availability with built-in uptime history and notifications.

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UptimeRobot+16

Cup is a lightweight Rust tool with a CLI and web UI to check Docker container image updates across registries, designed to avoid exhausting registry rate limits.

Tiny self-hosted dashboard to monitor and control UPS devices via Network UPS Tools (NUT), with real-time stats, multi-UPS support, and Prometheus/InfluxDB integrations.

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Amazon CloudWatch+10

Self-hosted port inventory to document which services use which ports across servers and VMs, helping prevent conflicts and keep infrastructure organized.

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Device42+4

Self-hostable domain portfolio manager that auto-fetches DNS/WHOIS/SSL data, tracks changes, monitors uptime, and sends configurable renewal and security alerts.

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Domain-Monitor+8

Self-hosted, UI-focused tool to manage servers over SSH with Ansible playbooks, Docker container visibility, automations, and Prometheus-backed metrics.

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Portainer Business Edition (Portainer Cloud)+10

Open-source, self-hosted uptime monitoring tool for websites, APIs, and infrastructure with notifications, public status pages, and multiple monitor types.

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UptimeRobot+19

Administrative web interface for managing, monitoring, and updating Tasmota-flashed IoT devices, including device discovery, bulk actions, and OTA firmware updates.

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SONOFF Cloud (eWeLink)+13

Fully-replicated DNS, DHCP and TFTP server with ad‑blocking, web UI, API, Prometheus metrics and multi-site replication for small to medium networks.

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Cisco OpenDNS (Umbrella)+10

Atlas is a containerized network infrastructure visualizer that scans subnets and Docker hosts, stores results, and presents real-time graphs and dashboards for monitorin...

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Auvik+6

Privacy-first, cookie-less open-source web analytics with session analysis, real-user performance monitoring, error tracking and feature flags. Self-hostable or available...

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Google Analytics+19

Real-time monitoring platform for Plex, Jellyfin, and Emby with session tracking, playback analytics, stream maps, alerts, and account-sharing detection rules.

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Tautulli+1

Notifiarr is a unified client that delivers configurable notifications, health checks, and automation for homelab apps like Plex and the *Arr stack via Discord.

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Healthchecks.io+8

A self-hosted service that monitors changes on web pages and notifies you via email or messaging apps using YAML configurations.

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Visualping+7

Self-hosted monitoring tool for uptime, TCP/HTTP checks, Docker monitoring, multi-user dashboards, incident management, SSO and alerting integrations.

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UptimeRobot+16

NetGoat is a self-hostable reverse proxy and traffic management platform offering Cloudflare-like features such as TLS termination, rate limiting, WAF-style filtering, an...

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Cloudflare+11

Real-time dashboard to analyze Traefik logs with GeoIP, status code breakdowns, filters, and multi-agent metrics via a Go agent and web UI.

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Datadog Log Management+11

Modern web UI for monitoring NUT-compatible UPS devices with real-time charts, historical reporting, and multi-channel alerts. Docker-ready with client/server modes.

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Amazon CloudWatch+9

Monitors GitHub and website releases and notifies via WebHooks and messaging channels.

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Distill.io+7

Self-hosted uptime and SSL monitoring with status pages, REST API, Prometheus/OpenTelemetry exporters, per-monitor notifications, and YAML config.

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UptimeRobot+16

Self-hosted uptime and SSL monitoring with status pages, REST API, Prometheus and OpenTelemetry exporters, per-monitor notifications, and YAML-based configuration.

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UptimeRobot+18

Lightweight web UI and REST control plane for exploring, inspecting, and managing Apache Iceberg catalogs and tables with Docker deployment and engine integrations.

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Amazon OpenSearch Service+4

Open-source event tracker for tech products: ingest key events, send push notifications, run webhook actions, and monitor critical workflows in real time.

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Healthchecks.io+10

Open-source event tracker that sends push notifications and real-time alerts, with webhook action buttons, PWA support, and a developer-friendly API and SDKs.

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Healthchecks.io+6

Lightweight Prometheus exporter that exposes metrics from the *arr suite (Sonarr, Radarr, Lidarr, etc.) for monitoring and Grafana dashboards.

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Grafana Cloud+12

Monitor domain names via RDAP, track full lifecycle history, receive alerts, and automatically attempt domain registration when domains enter deletion or become available...

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Domain-Monitor+4

Containerized MQTT management solution bundling a Mosquitto broker with a web UI for ACLs, dynamic security, client management, monitoring and cloud bridges.

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EMQX Cloud+6