monitoring
An open source, real-time monitoring tool with custom-monitor and agentLess.
Apache HertzBeat is a real-time monitoring system with agentless, performance cluster, prometheus-compatible, custom monitoring and status page building capabilities.
Records an executable's network activity into a Full Packet Capture file (.pcap) and much more.
Monitors network activity made by a process through the use of Windows Event Tracing (ETW) and Full Packet Capture (FPC). Filters a generated .pcap file with BPF based on the detected network activity made by the process. This application makes process network monitoring hella' easy.
APM for Ruby, Elixir, Node.js & Python. No-brainer monitoring for smart developers. Application Monitoring for Ruby on Rails, Elixir, Node.js & Python.
🖧🔍 WIFI / LAN intruder detector. Scans for devices connected to your network and alerts you if new and unknown devices are found.
Get visibility of what's going on on your WIFI/LAN network. Schedule scans for devices, port changes and get alerts if unknown devices or changes are found. Write your own Plugins with auto-generated UI and in-build notification system. Build out and easily maintain your network source of truth (NSoT).
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All-in-One Technical Website Monitoring.
Ensure that every aspect of your website is in top condition. Get notified when something is off.
Lightweight network IP scanner. Can be used to notify about new hosts and monitor host online/offline history
Affordable full-stack production debugging & monitoring. Resolve Production Issues, Fast. An Open Source Observability Platform: Unify Session Replays, Logs, Traces, Metrics and Errors – All Without the Datadog Price Tag.
Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by Clickhouse and OpenTelemetry.
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An app that uses RDAP to collect publicly available info about domains, track their history, and purchase them
Open source continuous profiling database.
Grafana Pyroscope is an open source continuous profiling database that provides fast, scalable, highly available, and efficient storage and querying. This helps you get a better understanding of resource usage in your applications down to the line number.
Monitor your Plex Media Server.
Tautulli is the best web application to monitor, view analytics, and receive notifications about your Plex Media Server.
Website change detection, monitoring, alerts, notifications, restock alerts.
Page change monitoring with alerts a breeze. The best way to monitor website changes. Loved by smart-shoppers, bargain-hunters, data-journalists and more. Now with intelligent product restock detection!
The best and simplest free open source web page change detection, website watcher, restock monitor and notification service. Restock Monitor, change detection. Designed for simplicity - Simply monitor which websites had a text change for free. Free Open source web page change detection, Website defacement monitoring, Price change notification
Page speed monitoring. Web performance library for measuring all performance vitals metrics.
Perfume is a tiny, web performance monitoring library that reports field data back to your favorite analytics tool.
Page Speed is a feature, and to deliver it we need to understand the many factors and fundamental limitations that are at play. If we can measure it, we can improve it.
Uncomplicated Observability for Python and beyond! 🪵🔥 .
Logfire is an observability platform built on the same belief as our open source library — that the most powerful tools can be easy to use.
Kepler (Kubernetes-based Efficient Power Level Exporter) is a Prometheus exporter. It uses eBPF to probe CPU performance counters and Linux kernel tracepoints.
These data and stats from cgroup and sysfs can then be fed into ML models to estimate energy consumption by Pods.
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One Complete Observability platform.
OneUptime is a comprehensive solution for monitoring and managing your online services. Whether you need to check the availability of your website, dashboard, API, or any other online resource, OneUptime can alert your team when downtime happens and keep your customers informed with a status page. OneUptime also helps you handle incidents, set up on-call rotations, run tests, secure your services, analyze logs, track performance, and debug errors.
grafana/otel-lgtm bundles Grafana's open source stack for OpenTelemetry monitoring in a single Docker image.
Your mission control center for PHP application performance.
Tideways saves you time by taking the guesswork out of your app’s backend performance. Gain detailed insights, spot performance bottlenecks, and get real-time error detection alerts.
monitor and alert. Get alerted when services go down or metrics go crazy. Self-hosted, easily-deployable monitoring and alerts service - like a lightweight PagerDuty
Cabot is a free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of PagerDuty, Server Density, Pingdom and Nagios without their cost and complexity. (Nagios, I'm mainly looking at you.)
It provides a web interface that allows you to monitor services (e.g. "Stage Redis server", "Production ElasticSearch cluster") and send telephone, sms or hipchat/email alerts to your on-duty team if those services start misbehaving or go down - all without writing a line of code. Best of all, you can use data that you're already pushing to Graphite/statsd to generate alerts, rather than implementing and maintaining a whole new system of data collectors.
The CNCF candidate for observability visualisation. Already supports Prometheus - more data sources to come! It aims to become a standard dashboard visualization tool for Prometheus and other datasources. It will focus on being GitOps-compatible and thus enabling a smooth "dashboards as code" workflow via a new and well-defined dashboard definition model.
concise commandline monitoring for containers.Top-like interface for container metrics.
ctop provides a concise and condensed overview of real-time metrics for multiple containers.
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The open-source alerts management and automation platform. Imagine you had GitHub Action for any part of your observability stack.
Keep makes it easy to consolidate all your alerts into a single pane of glass and to orchestrate workflows to automate your end-to-end processes.
Terminal bandwidth utilization tool.
This is a CLI utility for displaying current network utilization by process, connection and remote IP/hostname
HttpFy is a fast and multi-purpose HTTP toolkit.
A fast and powerful http toolkit that take a list of domains to find active domains and other information such as status-code, title, response-time , server, content-type and many other
Laravel, PHP and JS Error Tracking. Track all your PHP and JavaScript errors in one place.
Userland API monitor for threat hunting.
Captain is an endpoint monitoring tool that aims at spotting malicious events through API hooking, improving the process of threat hunting analysis . When a new process is created, Captain will inject a dll into it hooking some Windows API functions.
Grafana Agent is a vendor-neutral, batteries-included telemetry collector with configuration inspired by Terraform. It is designed to be flexible, performant, and compatible with multiple ecosystems such as Prometheus and OpenTelemetry.
Velociraptor is an advanced digital forensic and incident response tool that enhances your visibility into your endpoints.
Velociraptor is a tool for collecting host based state information using The Velociraptor Query Language (VQL) queries.
An Open Source Network Security Monitoring Tool Zeek (formerly Bro) is the world’s leading platform for network security monitoring.
Flexible, open source, and powered by defenders.
Evolving the Prometheus exposition format into a standard.
OpenMetrics a specification built upon and carefully extending Prometheus exposition format in almost 100% backwards-compatible ways.
Monitor a process and trigger a notification.
Never sit and wait for some long-running process to finish. Noti can alert you when it's done. You can receive messages on your computer or phone.
Nagstamon is a status monitor for the desktop.
Nagstamon is a status monitor for the desktop. It connects to multiple Nagios, Icinga, Opsview, Centreon, Op5 Monitor/Ninja, Checkmk Multisite, Thruk and monitos monitoring servers. Experimental support is provided for Zabbix, Zenoss and Livestatus monitors. It resides in systray, as a floating statusbar or fullscreen at the desktop showing a brief summary of critical, warning, unknown, unreachable and down hosts and services.
The all-in-one monitoring tool for your entire website.
Downtime happens, certificates expire and links break. Ensure your website is blazing fast, error free and properly indexed without the hassle of multiple tools.
Telegraf is the open source server agent to help you collect metrics from your stacks, sensors, and systems.
Telegraf is a server-based agent for collecting and sending all metrics and events from databases, systems, and IoT sensors. Telegraf is written in Go and compiles into a single binary with no external dependencies, and requires a very minimal memory footprint.
test your system with real data.
GoReplay is an innovative open-source solution which allows you to capture your existing users activity and re-use it for testing your application. With GoReplay you can perform shadowing, load testing, or detailed analysis and monitoring.
Gor is an open-source tool for capturing and replaying live HTTP traffic into a test environment in order to continuously test your system with real data. It can be used to increase confidence in code deployments, configuration changes and infrastructure changes.
Open Source Observability Platform for Logs, Metrics, Traces, and More – Your Ultimate Dashboard for Alerts and Insights.
OpenObserve is a cloud native observability platform built specifically for logs, metrics, traces and analytics designed to work at petabyte scale.
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A fancy self-hosted monitoring tool. Uptime Kuma is an easy-to-use self-hosted monitoring tool.
Observium is a comprehensive network monitoring platform designed to deliver powerful monitoring capabilities, combined with an elegant and intuitive user interface. From small businesses to large enterprises, Observium enables network administrators and IT professionals to efficiently manage and monitor their networks' health and status.
Executes commands in response to file modifications.
Run a command when files in the current directory change. Kick off build processes, restart development servers, detect activity… stop pressing Enter ⏎ over and over again.
Linux Native, API-Aware Networking and Security for Containers. eBPF-based Networking, Observability, Security.
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. It provides a simple flat Layer 3 network with the ability to span multiple clusters in either a native routing or overlay mode. It is L7-protocol aware and can enforce network policies on L3-L7 using an identity based security model that is decoupled from network addressing.
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Carbon Dioxide (CO2) levels are a good indication of whether a room has sufficient ventilation. Good air quality is important for productive learning and working environments and reduces the risk of virus transmission. Unfortunately most NZ buildings currently have no consistent monitoring of CO2 levels
Command-line URL Checker (and notifier).
CUC (English pronunciation: [cuc] / λευκός) is a very simple CLI tool to check various HTTP status for example if a webpage is available (200) or not found (404).
Graphite make it easy to store and graph metrics.
Graphite is an enterprise-ready monitoring tool that runs equally well on cheap hardware or Cloud infrastructure. Teams use Graphite to track the performance of their websites, applications, business services, and networked servers. It marked the start of a new generation of monitoring tools, making it easier than ever to store, retrieve, share, and visualize time-series data.
Fluent Bit is a super fast, lightweight, and highly scalable logging and metrics processor and forwarder. It is the preferred choice for cloud and containerized environments.
Speedtest Tracker is a self-hosted internet performance tracking application that runs speedtest checks against Ookla's Speedtest service.
Infrastructure management and security software. Rudder is an easy to use, web-driven, role-based solution for IT Infrastructure Automation & Compliance.
Rudder is a configuration and security automation platform. Manage your Cloud, hybrid or on-premises infrastructure in a simple, scalable and dynamic way. Rudder is an easy to use, web-driven, role-based solution for IT Infrastructure Automation & Compliance.
Open source cost monitoring for cloud native environments.
OpenCost is a vendor-neutral open source project for measuring and allocating infrastructure and container costs in real time. Built by Kubernetes experts and supported by Kubernetes practitioners, OpenCost shines a light into the black box of Kubernetes spend.
Application to comfortably monitor your network traffic. Multithreaded, cross-platform, reliable.
Sniffnet is a simple yet insightful application to analyse your network traffic in a straightforward and appealing way
Monitor and manage your PHP installations with ease.
PHP Monitor is a lightweight, native Mac menu bar app that interacts with Laravel Valet.
A lightweight, ultra-fast tool for building observability pipelines.
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Status Page for monitoring your websites and applications with beautiful graphs, analytics, and plugins. Run on any type of environment. An easy to use Status Page for your websites and applications. Statping will automatically fetch the application and render a beautiful status page with tons of features for you to build an even better status page. This Status Page generator allows you to use MySQL, Postgres, or SQLite on multiple operating systems.
Unified monitoring wallboard. Light, ergonomic and reliable monitoring for anything, because you deserve dependable and clean wallboard. Monitoror is a wallboard monitoring app to monitor server status; monitor CI builds progress or even display critical values.
High-quality, ubiquitous, and portable telemetry to enable effective observability.
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- Even more OpenTelemetry - Kubernetes special @ A Java geek.
- What is OpenTelemetry? @ SigNoz.
- CI/CD Observability with OpenTelemetry - A Step by Step Guide @ SigNoz.
- OpenTelemetry configuration gotchas @ A Java geek.
- From chaos to clarity: How OpenTelemetry unified observability across clouds @ CNCF.
- How to build a cost-effective observability platform with OpenTelemetry @ CNCF.
- Why the OpenTelemetry Batch Processor is Going Away (Eventually) @ dash0.
- From Signals to Reliability: SLOs, Runbooks and Post-Mortems @ Fatih Koç.
- OpenTelemetry Collector vs agent: How to choose the right telemetry approach @ CNCF.
- How to Reduce Telemetry Volume by 40% Smartly (Java) @ Observability Real Talk.
- Why OpenTelemetry Is Paving the Way for the Rise of the Observability Warehouse @ DevOps.
- Open standards in 2026: The backbone of modern observability @ Grafana Labs Blog.
- Telemetry that matters: Designing sustainable, high-impact observability pipelines @ CNCF.
- Don't Wrap OpenTelemetry — You're Probably Hurting More Than Helping @ OpenTelemetry.
- Operating OpenTelemetry at scale with OpAMP @ CNCF.
- Deploy OpenTelemetry Gateway on AWS: Monitoring Your Observability Pipeline @ AWS Cloud Operations Blog.
- One-command OpenTelemetry setup on Linux hosts @ OpenTelemetry.
- From 40 seconds to under 10: rebuilding incident detection on OpenTelemetry, Apache Kafka, and Apache Flink on Kubernetes @ CNCF.
The Data Platform for the Hybrid World. The Unifier Security and Observability Platform. A data platform built for expansive data access, powerful analytics and automation
The blackbox exporter allows blackbox probing of endpoints over HTTP, HTTPS, DNS, TCP, ICMP and gRPC.
Monitoring the web's leading communities for you We're keeping an eye on things 24/7, so you don't have to. “I monitor answers not questions” See: https://ctrlalt.cc/syften-potw/ It’s a social listening tool that makes it super easy to keep an eye on conversations that you can join across.. pretty much the internet.
IT Management Software and Observability Platform. Full-stack observability solutions for cloud, hybrid, and on-premises.
Coroot is a monitoring and troubleshooting tool for microservice architectures.
Coroot helps you fix service outages and even prevent them. It continuously audits telemetry data to highlight issues and weak spots in your infrastructure. Coroot is not another observability platform with flashy dashboards and alerts rules. It is an assistant, which not only detects issues in your applications but also provides you with a list of possible fixes. Each recommendation is equipped with all the relevant details to implement the fix.
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This is a pure-Python, open source and free implementation of SNMP agents simulator distributed under 2-clause BSD license.