Self-hosted uptime monitoring: open-source Pingdom and UptimeRobot alternatives

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. . Open source Application Performance Monitoring (APM) & Observability tool

Open-source cron job and background task monitoring service, written in Python & Django

The fastest path to AI-powered full stack observability, even for lean teams.

The Prometheus monitoring system and time series database.

Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring, all for free or enjoy our SaaS plan!

A self-hosted dashboard that puts all your feeds in one place

Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. YC W23

A high-performance observability data pipeline.

VictoriaMetrics: fast, cost-effective monitoring solution and time series database

The open-source Observability 2.0 database. One engine for metrics, logs, and traces, replacing Prometheus, Loki & ES.

Create agents that monitor and act on your behalf. Your agents are standing by!

OpenObserve is an open-source observability platform for logs, metrics, traces, and frontend monitoring. A cost-effective alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.

HOMER - 100% Open-Source SIP, VoIP, RTC Packet Capture & Monitoring

一款面向泛前端产品研发全生命周期的效率平台。

Linux Kernel Manager and Activity Monitor

Scalable datastore for metrics, events, and real-time analytics

LinDB is a scalable, high performance, high availability distributed time series database.

Top-like interface for container metrics

Automated developer-oriented status page with alerting and incident support

Yet another cross-platform graphical process/system monitor.

GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.

Lightweight network IP scanner written in Go. With notifications, history, export to Grafana

π RuView turns commodity WiFi signals into real-time spatial intelligence, vital sign monitoring, and presence detection, all without a single pixel of video.