Best Self-hosted Monitoring & Observability tools in 2026

103 self-hosted open source alternatives in this category

103 services found

SmokePing logo

SmokePing

Latency monitoring, graphing, and alerting system

2k
216
Last commit

SmokePing is an active network monitoring tool that measures latency and packet loss over time, stores results in RRD, and visualizes them via a web UI with alerting.

GPL-2.0Actively maintained
Alternative to:
Pingdom logo
Pingdom
+15

LoggiFly

Keyword and regex alerting for Docker container logs

1.8k
51
Last commit

LoggiFly monitors Docker/Podman container logs for keywords or regex patterns and sends alerts via ntfy or Apprise, with optional log attachments and container actions.

MITActively maintained
Alternative to:
Better Stack Uptime logo
Better Stack Uptime
+19
Kubetail logo

Kubetail

Real-time Kubernetes logging dashboard for browser and terminal

1.8k
125
Last commit

Kubetail is a real-time Kubernetes logging dashboard and CLI that merges multi-container workload logs into a single timeline, running on desktop or inside your cluster.

Apache-2.0Actively maintained
Alternative to:
Datadog Log Management logo
Datadog Log Management
+9

PeaNUT

Web dashboard and API for Network UPS Tools (NUT) monitoring

1.6k
45
Last commit

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.

Apache-2.0Actively maintained
Alternative to:
Amazon CloudWatch logo
Amazon CloudWatch
+10
Domain Locker logo

Domain Locker

Domain portfolio tracking, monitoring, and renewal alert dashboard

1.5k
116
Last commit

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

MITActively maintained
Alternative to:
Domain-Monitor logo
Domain-Monitor
+8
Cup logo

Cup

Fast CLI and web UI for Docker image update checking

1.3k
25
Last commit

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.

AGPL-3.0Actively maintained
Emoncms logo

Emoncms

Energy and environmental time-series logging and visualization

1.3k
529
Last commit

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

AGPL-3.0Actively maintained
Alternative to:
InfluxDB Cloud logo
InfluxDB Cloud
+14
Atlas logo

Atlas

Network discovery, visualization, and monitoring for hosts and Docker

1.3k
76
Last commit

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

MITActively maintained
Alternative to:
Auvik logo
Auvik
+6

CoreControl

Dashboard for managing servers, apps, and uptime monitoring

1.3k
37
Last commit

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

MITSlowing down
Alternative to:
UptimeRobot logo
UptimeRobot
+16

PortNote

Web app for documenting and managing port usage across systems

1.3k
33
Last commit

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

MITSlowing down
Alternative to:
Device42 logo
Device42
+4
Peekaping logo

Peekaping

Self-hosted uptime monitoring with alerts and status pages

1.2k
68
Last commit

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

MITActively maintained
Alternative to:
UptimeRobot logo
UptimeRobot
+19
Swetrix logo

Swetrix

Cookie-less open-source web analytics and performance monitoring

1.2k
71
Last commit

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

AGPL-3.0Actively maintained
Alternative to:
Google Analytics logo
Google Analytics
+19

Squirrel Servers Manager

Agentless server, container, and configuration management UI

1k
35
Last commit

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

AGPL-3.0Slowing down
Alternative to:
Portainer Business Edition (Portainer Cloud) logo
Portainer Business Edition (Portainer Cloud)
+10
TasmoAdmin logo

TasmoAdmin

Web UI to manage and update Tasmota-flashed devices

975
148
Last commit

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

GPL-3.0Actively maintained
Alternative to:
SONOFF Cloud (eWeLink) logo
SONOFF Cloud (eWeLink)
+13
Notifiarr logo

Notifiarr

Notification and monitoring client for Notifiarr integrations

928
43
Last commit

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

MITActively maintained
Alternative to:
Healthchecks.io logo
Healthchecks.io
+8
Gravity logo

Gravity

Replicated DNS, DHCP & TFTP server with ad-blocking

927
30
Last commit

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

GPL-3.0Actively maintained
Alternative to:
Cisco OpenDNS (Umbrella) logo
Cisco OpenDNS (Umbrella)
+10
NetGoat logo

NetGoat

Self-hostable reverse proxy and traffic manager with WAF features

890
47
Last commit

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

AGPL-3.0Actively maintained
Alternative to:
Cloudflare logo
Cloudflare
+11

Nutify

Web-based UPS monitoring with dashboards, alerts, and reports

833
33
Last commit

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.

MITActively maintained
Alternative to:
Amazon CloudWatch logo
Amazon CloudWatch
+9
Traefik Log Dashboard logo

Traefik Log Dashboard

Real-time analytics dashboard for Traefik reverse proxy logs

792
21
Last commit

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

AGPL-3.0Actively maintained
Alternative to:
Datadog Log Management logo
Datadog Log Management
+11
Lunalytics logo

Lunalytics

Open-source Node.js uptime and service monitoring dashboard

737
43
Last commit

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

Actively maintained
Alternative to:
UptimeRobot logo
UptimeRobot
+16
Argus logo

Argus

Open-source release monitor with alerts and WebHooks.

731
27
Last commit

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

Apache-2.0Actively maintained
Alternative to:
Distill.io logo
Distill.io
+7

Kibitzr

Self-hosted web page changes monitor with YAML-driven rules.

714
60
Last commit

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

MITActively maintained
Alternative to:
Visualping logo
Visualping
+7
Kuvasz logo

Kuvasz

Open-source uptime and SSL monitoring with status pages

598
37
Last commit

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

AGPL-3.0Actively maintained
Alternative to:
UptimeRobot logo
UptimeRobot
+18
Kuvasz Uptime logo

Kuvasz Uptime

Open-source uptime and SSL monitoring with status pages

598
37
Last commit

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

AGPL-3.0Actively maintained
Alternative to:
UptimeRobot logo
UptimeRobot
+16

BunkerM

Web-based management platform for Mosquitto MQTT brokers

491
31
Last commit

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

Apache-2.0Actively maintained
Alternative to:
EMQX Cloud logo
EMQX Cloud
+6
Operational logo

Operational

Event tracking and alerting platform with push notifications

477
18
Last commit

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

AGPL-3.0Actively maintained
Alternative to:
Healthchecks.io logo
Healthchecks.io
+10
Operational logo

Operational

Event tracking and alerting system for critical product events

477
18
Last commit

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.

AGPL-3.0Actively maintained
Alternative to:
Healthchecks.io logo
Healthchecks.io
+6

Nimtable

Observability and control plane for Apache Iceberg catalogs

474
31
Last commit

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

Apache-2.0Slowing down
Alternative to:
Amazon OpenSearch Service logo
Amazon OpenSearch Service
+4

Scraparr

Prometheus exporter for the *arr suite (Sonarr/Radarr/Lidarr)

417
18
Last commit

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

GPL-3.0Actively maintained
Alternative to:
Grafana Cloud logo
Grafana Cloud
+12
Domain Watchdog logo

Domain Watchdog

RDAP-based domain monitoring, history tracking, and backordering

393
31
Last commit

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

AGPL-3.0Actively maintained
Alternative to:
Domain-Monitor logo
Domain-Monitor
+4