observability
Open Source Metrics Engine. Distributed TSDB and Query Engine, Prometheus Sidecar, Metrics Aggregator, and more such as Graphite storage and query engine.
M3 is a Prometheus compatible, easy to adopt metrics engine that provides visibility for some of the world’s largest brands.
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An asynchronous Prometheus exporter for wireguard.
wireguard_exporter runs wg show [..] and scrapes the output to build Prometheus metrics.
Manage your Observability Systems. Command Line utility for managing Grafana Resources.
Software engineers know how to version and deploy their resources. Tools like Git or CI enable reliable workflows that track changes, with meaningful review processes giving confidence in the expected outcomes. Now, with Grizzly, you can have all this with Grafana resources, dashboards, datasources and more.
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.
Dashboards for DevOps.
Visualize cloud configurations. Assess security posture against a massive library of benchmarks. Build custom dashboards with code.
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CISA’s LME provides a free, easy-to-deploy log management solution. It includes real-time threat alerts, customizable dashboards, and community collaboration on GitHub, helping small to medium-sized organizations improve their cybersecurity.
CISA's Logging Made Easy (LME) is a no cost, open source platform that centralizes log collection, enhances threat detection, and enables real-time alerting, helping small to medium-sized organizations secure their infrastructure. Whether you're upgrading from a previous version or deploying for the first time, LME offers a scalable, efficient solution for logging and endpoint security.
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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.
The Single Database for Big Observability. Fast, Efficient, Single Database for Real-Time Observability. The real-time, cloud-native observability database for metrics, logs, and traces, providing sub-second insights from edge to cloud—at any scale.
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A lightweight, open-source, and secure log viewer for Docker.
Dozzle is a small lightweight application with a web based interface to monitor Docker logs. It doesn’t store any log files. It is for live monitoring of your container logs only.
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Dynamic Tracing for Linux.
bpftrace is a high-level tracing language for Linux and provides a quick and easy way for people to write observability-based eBPF programs, especially those unfamiliar with the complexities of eBPF.
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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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🖧🔍 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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The alerta monitoring system is a tool used to consolidate and de-duplicate alerts from multiple sources for quick ‘at-a-glance’ visualisation. With just one system you can monitor alerts from many other monitoring tools on a single screen.
grafana/otel-lgtm bundles Grafana's open source stack for OpenTelemetry monitoring in a single Docker image.
A lightweight, ultra-fast tool for building observability pipelines.
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A scalable, fault-tolerant, and low-latency storage service optimized for real-time append-only workloads.
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Open Source Continuous Profiling Platform. Debug performance issues down to a single line of code.
Grafana Pyroscope is a continuous profiling platform designed to surface performance insights from your applications, helping you optimize resource usage such as CPU, memory, and I/O operations. With Pyroscope, you can both proactively and reactively address performance bottlenecks across your system.
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Get your app Performance score. Flashlight is a Lighthouse-like tool for mobile apps. No installation required.
📱⚡️ Lighthouse for Mobile - audits your app and gives a performance score to your Android apps (native, React Native, Flutter..). Measure performance on CLI, E2E tests, CI...
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Open-source APM. Understand issues in your deployed applications & solve them quickly.
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.
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Making the Network Visible.
sFlow® is an industry standard technology for monitoring high speed switched networks. It gives complete visibility into the use of networks enabling performance optimization, accounting/billing for usage, and defense against security threats.
Kubernetes Monitoring, Application Debug Platform. Instant Kubernetes-Native Application Observability.
Pixie is an open-source observability tool for Kubernetes applications. Use Pixie to view the high-level state of your cluster (service maps, cluster resources, application traffic) and also drill down into more detailed views (pod state, flame graphs, individual full-body application requests).
All-in-One Observability Platform.
Coroot is an open-source APM & Observability tool, a DataDog and NewRelic alternative. Metrics, logs, traces, continuous profiling, and SLO-based alerting, supercharged with predefined dashboards and inspections.
A wiki connected to the systems it describes. Self-Hosted Wiki With Live Metric Charts.
Oxynote is an open-source workspace for engineering docs. Text, diagrams and live metrics in one editor, with a diff for every change.
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.
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.
An open-source observability platform built for simplicity. Say goodbye to manual analysis of metrics, logs, and traces. Gain actionable insights and focus on remediation.
Coroot is an open-source APM & Observability tool, a DataDog and NewRelic alternative 📊, 🖥️, 👉. Powered by eBPF for rapid insights into system performance. Monitor, analyze, and optimize your infrastructure effortlessly for peak reliability at any scale.
An asynchronous Prometheus exporter for iptables
iptables_exporter runs one of several backend "scrape targets" such as iptables-save --counter and scrapes the output to build Prometheus metrics.
Self-hosted Error Tracking.
Bugsink offers real-time error tracking for your applications with full control through self-hosting.
Status Page On Demand. ⛑ Automated developer-oriented status page. The automated status page that you deserve.
If your infrastructure went down right now, how long would it take for you to know?
Gatus is a developer-oriented health dashboard that gives you the ability to monitor your services using HTTP, ICMP, TCP, and even DNS queries as well as evaluate the result of said queries by using a list of conditions on values like the status code, the response time, the certificate expiration, the body and many others. The icing on top is that each of these health checks can be paired with alerting via Slack, Teams, PagerDuty, Discord, Twilio and many more.
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Cloud-Native API Gateway.
Apache APISIX provides rich traffic management features like Load Balancing, Dynamic Upstream, Canary Release, Circuit Breaking, Authentication, Observability, etc.
🛡️ Privacy-first, Agnostic Telemetry for Self-Hosted Software.
Collect usage stats, verify active instances, and understand your user base without spying on them.
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sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling you to test, monitor, and optimize your website’s speed using real browsers in various environments.
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Real-time, high-performance reading of log files and writing to clickhouse.
This tool can write the monolog standard log directly to clickhouse in real time via the tcp protocol. If you can write regular rules, other standardized log can also support it.
Tools to measure and visualize energy use on desktop computers.
PostgreSQL Remote Control.
temBoard is a powerful management tool for PostgreSQL. It allows to observe, optimize, or configure PostgreSQL instances.
App Monitoring, Error Tracking & Real User Monitoring. Application insights your developers need without the noise. Data means nothing without context. Get the full picture with secure, scalable error tracking and performance monitoring.
This is an OpenTelemetry auto-instrumentation package for Symfony framework applications.
Visibility into AI agent activity on endpoints, with on-device detection, optional pre-action blocking, and forensic reconstruction.
numbat observes supported desktop, CLI, IDE, and gateway agents through local hooks and plugins, OTLP/HTTP logs, and on-disk session artifacts. Live and at-rest activity is normalized into one event model and evaluated by the same CEL rule engine. Detection runs locally; records can be written to stdout or a local file and optionally delivered over HTTP.
Easily collect and report PostgreSQL metrics for scripting, automation and troubleshooting.
pgmetrics is an open-source, zero-dependency, single-binary tool that can collect 350+ metrics from a running PostgreSQL server and display it in easy-to-read text format or export it as JSON and CSV for scripting.
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Takes alerts from Prometheus Alertmanager, and shows them on a webpage for heads up displays. No-Nonsense.
An 'Observe and Report Buddy' for your SRE toolbox.
Green Orb is a lightweight monitoring tool that enhances your application's reliability by observing its console output for specific patterns and executing predefined actions in response. Designed to integrate seamlessly, it's deployed as a single executable binary that runs your application as a subprocess, where it can monitor all console output, making it particularly useful in containerized environments. Green Orb acts as a proactive assistant, handling essential monitoring tasks and enabling SREs to automate responses to critical system events effectively.
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.
A DevOps engineer's workspace in one window
A terminal with local AI and an AI agent, Kubernetes, SSH and host monitoring, files between hosts, Yandex Cloud, databases, an IDE with git, alerts, notes with tasks, KeePass, Passbolt and MikroTik — together, and aware of each other. Turn on only the sections you need.
Monitoring and troubleshooting transformed. The open-source observability , monitoring , and troubleshooting platform everyone needs.
Fed up with your Datadog bill? Tired of setting up and maintaining Prometheus & Grafana? Try Netdata today! Feel the pulse of your infrastructure, with high-resolution metrics, journal logs and real-time visualizations.
Data Observability Platform for Modern Data Teams. Trust the data that powers your business.
Automated end-to-end data observability — so data teams are the first to know about data issues.
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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eBPF-based Security Observability and Runtime Enforcement.
Tetragon is a flexible Kubernetes-aware security observability and runtime enforcement tool that applies policy and filtering directly with eBPF, allowing for reduced observation overhead, tracking of any process, and real-time enforcement of policies.
Related contents:
- Automated Kubernetes Threat Detection with Tetragon and Azure Sentinel @ Saraswathi Lakshman's Medium.
- Tetragon: An End-of-Year 2025 Reflection @ Cilium.
- Mon premier contact avec Tetragon @ Le blog de Little Jo :fr:.
- First Contact with Tetragon @ The Little Jo's Blog.
- Installons Tetragon dans Kubernetes @ Le blog de Little Jo :fr:.
- Kubernetes Runtime Security : The Guide @ cilium.
Open-source observability for your LLM application, based on OpenTelemetry.
OpenLLMetry is a set of extensions built on top of OpenTelemetry that gives you complete observability over your LLM application. Because it uses OpenTelemetry under the hood, it can be connected to your existing observability solutions - Datadog, Honeycomb, and others.
Open-Source ML Monitoring and LLM Observability.
Open-source evaluation and observability for ML and LLM systems Evaluate, test, and monitor AI-powered systems. From tabular data to LLMs. Built for data scientists, AI, and ML engineers.
Simple, open source error tracking. Open source error, performance, and uptime monitoring.
Collect every error from your project in real time, organize them to make them useful, and receive alerts when and where you want...without breaking the budget.
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Lightweight network IP scanner. Can be used to notify about new hosts and monitor host online/offline history
Intelligent Prompt Gateway.
Arch is an intelligent prompt gateway. Engineered with (fast) LLMs for the secure handling, robust observability, and seamless integration of prompts with APIs - all outside business logic. Built by the core contributors of Envoy proxy, on Envoy.
Arch is an intelligent Layer 7 gateway designed to protect, observe, and personalize LLM applications (agents, assistants, co-pilots) with your APIs.
OpenTelemetry-native GenAI and LLM Application Observability.
Open source platform for AI Engineering: OpenTelemetry-native LLM Observability, GPU Monitoring, Guardrails, Evaluations, Prompt Management, Vault, Playground. 🚀💻 Integrates with 50+ LLM Providers, VectorDBs, Agent Frameworks and GPUs.
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eks-node-viewer is a tool for visualizing dynamic node usage within a cluster. It was originally developed as an internal tool at AWS for demonstrating consolidation with Karpenter. It displays the scheduled pod resource requests vs the allocatable capacity on the node. It does not look at the actual pod resource usage.
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.
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.
Get Better at Getting Better.
DORA is the largest and longest running research program of its kind, that seeks to understand the capabilities that drive software delivery and operations performance. DORA helps teams apply those capabilities, leading to better organizational performance.
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Scalable, Open Source, Logs DB & Logging Solution.
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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.
Logs, Traces, Metrics, Session Replay, Exceptions. The only tool you need to know what is happening and how to fix it.
Traceway is an OpenTelemetry-native observability platform that combines logs, traces, metrics, session replay/RUM, exceptions, and AI tracing together. Point an OTLP exporter at it and you're in business. No Collector, no glue code, no per-language vendor SDK.
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