* [Uptime Kuma 2.4.0](https://github.com/louislam/uptime-kuma) – Self-hosted monitoring tool for tracking the uptime of various services.

* [Prometheus v3.12.0](https://github.com/prometheus/prometheus) – Monitoring system and time series database that collects metrics and triggers alerts based on specified conditions.

* [sitespeed.io v41.2.0](https://github.com/sitespeedio/sitespeed.io) – Comprehensive web performance tool for measuring, monitoring, and optimizing website speed.

* [Gatus v5.36.0](https://github.com/TwiN/gatus) – Developer-oriented health dashboard for monitoring services using various protocols and conditions.

* [Nezha Monitoring v2.1.0](https://github.com/nezhahq/nezha) – Self-hostable, lightweight tool for monitoring servers and websites.

* [Riemann Tools v2.0.0](https://github.com/riemann/riemann-tools) – Collection of small programs that submit system and service metrics and events to a monitoring server.

* [CDK Monitoring Constructs v10.1.0](https://github.com/cdklabs/cdk-monitoring-constructs) – CDK-based constructs providing CloudWatch alarms and dashboards to monitor AWS infrastructure.

* [Coroot v1.21.0](https://github.com/coroot/coroot) – Observability tool that transforms application data into actionable insights.

* [OpenTelemetry Collector v0.153.0](https://github.com/open-telemetry/opentelemetry-collector) – Vendor-agnostic implementation for receiving, processing, and exporting telemetry data.

* [Checkly CLI 8.0.0](https://github.com/checkly/checkly-cli) – JavaScript/TypeScript-native workflow for coding, testing, and deploying synthetic monitoring at scale.

* [kube-state-metrics v2.19.0](https://github.com/kubernetes/kube-state-metrics) – Service that generates metrics about the state of Kubernetes objects.

* [Instana Node.js Tracer Monorepo v6.0.0](https://github.com/instana/nodejs) – Repository hosting Instana's Node.js tracer packages for server and serverless environments.

* [Komari 1.2.0](https://github.com/komari-monitor/komari) – Lightweight self-hosted server monitoring tool with web interface and low resource consumption.

* [Prometheus Operator v0.91.0](https://github.com/prometheus-operator/prometheus-operator) – Kubernetes-native deployment and management of Prometheus and related monitoring components.

* [Synthetic Monitoring Agent v0.58.0](https://github.com/grafana/synthetic-monitoring-agent) – Executes distributed synthetic checks and forwards metrics and events to Grafana Cloud Prometheus and Loki.

* [SOLECTRUS v1.2.0](https://github.com/solectrus/solectrus) – Smart solar dashboard providing real-time insights into energy generation and consumption.

* [Toolkit for Antigravity v2.6.0](https://github.com/n2ns/antigravity-panel) – Real-time quota monitoring, usage analytics, and cache management within the Antigravity IDE sidebar.

* [OneUptime 10.4.16](https://github.com/OneUptime/oneuptime) – Complete observability platform for monitoring uptime, status pages, incident management, alerts, logs, and application performance.

* [Coroot-node-agent v1.33.0](https://github.com/coroot/coroot-node-agent) – Prometheus-format exporter using eBPF to collect node and container metrics, including TCP traces, log patterns, delay accounting and OOM events.

* [BetterDB Monitor v0.22.0](https://github.com/BetterDB-inc/monitor) – Real-time monitoring, slowlog analysis, and audit trails for Valkey and Redis.

* [K U L A 0.16.0](https://github.com/c0m4r/kula) – Lightweight self-contained Linux server monitoring tool that reads system interfaces, stores metrics in tiered ring-buffer files, and serves real-time Web and terminal dashboards.

* [Prometheus NATS Exporter v0.20.0](https://github.com/nats-io/prometheus-nats-exporter) – Exports NATS server metrics from monitoring endpoints to a Prometheus scrape endpoint.

* [Dashbrew v1.1.0](https://github.com/rasjonell/dashbrew) – Terminal dashboard builder that visualizes data from scripts and APIs using simple JSON configuration.

* [SolidQueueMonitor v2.1.0](https://github.com/vishaltps/solid_queue_monitor) – Lightweight, zero-dependency web interface for monitoring Solid Queue background jobs in Rails applications.

* [Grafana v13.0.1+security-01](https://github.com/grafana/grafana) – Platform to query, visualize, alert on, and explore metrics and logs from multiple data sources.

* [Telegraf v1.38.4](https://github.com/influxdata/telegraf) – Agent for collecting, processing, aggregating, and writing metrics, logs, and other data.

* [InfluxDB v2.9.1](https://github.com/influxdata/influxdb) – Database designed for collecting, processing, transforming, and storing event and time series data.

* [Ember v1.4.0](https://github.com/alexandre-daubois/ember) – Real-time terminal dashboard for monitoring Caddy servers and FrankenPHP internals.

* [NightOwl Agent v1.0.0](https://github.com/lemed99/nightowl-agent) – Laravel monitoring agent that ingests Nightwatch telemetry, buffers it locally, and drains into a PostgreSQL database you control.

* [Orchestrion v1.10.0](https://github.com/DataDog/orchestrion) – Processes Go source code at compile time to automatically insert instrumentation based on project imports.

* [apm-agent-go v2.7.12](https://github.com/elastic/apm-agent-go) – Go library that traces application execution and sends performance metrics and errors to the Elastic APM server.

* [Pulse v5.1.34](https://github.com/rcourtman/Pulse) – Lightweight monitoring application for Proxmox VE that displays real-time status for VMs and containers via a web interface.

* [carbon-relay-ng v1.5.15](https://github.com/grafana/carbon-relay-ng) – High-performance carbon stream relay and aggregator with runtime admin interfaces, validation, spooling, and support for multiple outputs.

* [RuView v0.3.0-streaming-eng...](https://github.com/ruvnet/RuView) – WiFi-based sensing platform converting commodity WiFi signals into room-level presence, vital signs, activity recognition, and environment mapping.

* [Updo v0.4.8](https://github.com/Owloops/updo) – Command-line tool for real-time website uptime, performance, and SSL certificate monitoring with alert notifications.

* [OPNsense Prometheus Exporter v0.0.15](https://github.com/AthennaMind/opnsense-exporter) – Prometheus exporter collecting firewall, plugin, and service metrics from the device API for Grafana and alerting integration.

* [Promster v15.5.1](https://github.com/tdeekens/promster) – Prometheus exporter for measuring metrics from Node.js servers like Hapi, Express, Marble.js, Apollo, and Fastify.

* [NATS Surveyor v0.9.10](https://github.com/nats-io/nats-surveyor) – Polls servers for Statz messages and exposes Prometheus-format metrics to provide a full view of a deployment.

* [pganalyze collector v0.70.2](https://github.com/pganalyze/collector) – Go-based daemon for collecting PostgreSQL metrics and log data.

* [Nightingale v9.0.0-beta.2](https://github.com/ccfos/nightingale) – Monitoring and alerting solution similar to Grafana for visualization.

* [GPUd v0.11.7](https://github.com/leptonai/gpud) – GPU-focused monitoring and diagnostics tool that detects GPU and fabric errors and reports critical system metrics.

* [homer eleven 11.0.226](https://github.com/sipcapture/homer) – SIP/VoIP/RTC packet capture and observability platform with HEP ingest, DuckDB-based data lake, and query API.

* [pg_stat_ch v0.3.9](https://github.com/ClickHouse/pg_stat_ch) – PostgreSQL extension capturing per-query execution telemetry and exporting raw events to ClickHouse for analytical aggregation.

* [Lunalytics 0.10.23](https://github.com/KSJaay/Lunalytics) – Monitoring tool built with Node.js and React for tracking uptime and managing user access.

* [OpenClaw Dashboard v2026.6.1](https://github.com/mudrii/openclaw-dashboard) – Zero-dependency local command center for monitoring AI agent gateways, costs, sessions, cron jobs, and model usage.

* [UptimeKit v3.3.1-canary.13](https://github.com/uptimekit/uptimekit) – Modern status page and monitoring solution offering uptime monitoring, incident management, customizable status pages, analytics, and multi-tenant support.

* [Tracecat 1.0.0-beta.49-rc.2](https://github.com/TracecatHQ/tracecat) – Modern automation platform for security and IT engineers with YAML templates, no-code workflows, lookup tables, and case management.

* [SNClient v0.43](https://github.com/ConSol-Monitoring/snclient) – Cross-platform monitoring agent replacing NRPE and NSClient++, supporting Prometheus and NSCP REST checks.

* [Glouton 26.05.19.091601](https://github.com/bleemeo/glouton) – Monitoring agent collecting metrics from exporters and services, exposing a Prometheus endpoint and integrated dashboard.

* [Pixie release/vizier/v0.14...](https://github.com/pixie-io/pixie) – Kubernetes-native observability platform that auto-collects eBPF telemetry, stores data in-cluster, and provides scriptable queries and visualizations.

* [Canary checker v1.1.3-beta.147](https://github.com/flanksource/canary-checker) – Kubernetes-native platform for defining, running, and monitoring passive and synthetic health checks across applications and infrastructure.