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Best Open Source observability Libraries

A curated list of the most popular GitHub repositories tagged with observability. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1netdata/netdata

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

77,825C
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#2SigNoz/signoz

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

25,825TypeScript
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#3apache/skywalking

APM, Application Performance Monitoring System

24,700Java
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#4mlflow/mlflow

The open source developer platform to build AI agents and models with confidence. Enhance your AI applications with end-to-end tracking, observability, and evaluations, all in one integrated platform.

24,349Python
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#5cilium/cilium

eBPF-based Networking, Security, and Observability

23,820Go
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#6jaegertracing/jaeger

CNCF Jaeger, a Distributed Tracing Platform

22,481Go
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#7langfuse/langfuse

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

22,137TypeScript
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#8PrefectHQ/prefect

Prefect is a workflow orchestration framework for building resilient data pipelines in Python.

21,650Python
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#9vectordotdev/vector

A high-performance observability data pipeline.

21,350Rust
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#10elastic/kibana

Your window into all of your data

20,951TypeScript
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#11mikeroyal/Self-Hosting-Guide

Self-Hosting Guide. Learn all about locally hosting (on premises & private web servers) and managing software applications by yourself or your organization. Including Cloud, LLMs, WireGuard, Automation, Home Assistant, and Networking.

18,702Dockerfile
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#12openobserve/openobserve

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.

17,957TypeScript
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#13thanos-io/thanos

Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.

13,970Go
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#14Effect-TS/effect

Build production-ready applications in TypeScript

13,265TypeScript
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#15ccfos/nightingale

Nightingale is to monitoring and alerting what Grafana is to visualization.

12,841Go
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#16upgundecha/howtheysre

A curated collection of publicly available resources on how technology and tech-savvy organizations around the world practice Site Reliability Engineering (SRE)

9,681JavaScript
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#17hyperdxio/hyperdx

Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry.

9,324TypeScript
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#18highlight/highlight

highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.

9,143TypeScript
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#19traceloop/openllmetry

Open-source observability for your GenAI or LLM application, based on OpenTelemetry

6,848Python
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#20open-telemetry/opentelemetry-collector

OpenTelemetry Collector

6,623Go
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