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.
#2langfuse/langfuse
🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.
#3SigNoz/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
#4mlflow/mlflow
The open source AI engineering platform for agents, LLMs, and ML models. MLflow enables teams of all sizes to debug, evaluate, monitor, and optimize production-quality AI applications while controlling costs and managing access to models and data.
#5apache/skywalking
APM, Application Performance Monitoring System
#6mikeroyal/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.
#7openobserve/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.
#8openzipkin/zipkin
Zipkin is a distributed tracing system
#9kubesphere/kubesphere
The container platform tailored for Kubernetes multi-cloud, datacenter, and edge management ⎈ 🖥 ☁️
#10VictoriaMetrics/VictoriaMetrics
VictoriaMetrics: fast, cost-effective monitoring solution and time series database
#11upgundecha/howtheysre
A curated collection of publicly available resources on how technology and tech-savvy organizations around the world practice Site Reliability Engineering (SRE)
#12hyperdxio/hyperdx
Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry.
#13highlight/highlight
highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.
#14OneUptime/oneuptime
Complete open-source monitoring and observability platform.
#15GreptimeTeam/greptimedb
The open-source observability database. One columnar engine for metrics, logs, and traces, on object storage.
#16grafana/mimir
Grafana Mimir provides horizontally scalable, highly available, multi-tenant, long-term storage for Prometheus.
#17micrometer-metrics/micrometer
An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
#18parca-dev/parca
Continuous profiling for analysis of CPU and memory usage, down to the line number and throughout time. Saving infrastructure cost, improving performance, and increasing reliability.
#19rajnandan1/kener
Stunning status pages, batteries included!
#20DataDog/datadog-agent
Main repository for Datadog Agent
#21HolmesGPT/holmesgpt
SRE Agent - CNCF Sandbox Project
#22VictoriaMetrics/VictoriaLogs
Fast and easy to use database for logs, which can efficiently handle terabytes of logs
#23trpc-group/trpc-agent-go
A Go framework for building production agent systems with graph workflows, tools, memory, A2A, AG-UI, MCP, evaluation, and observability.
#24theopenco/llmgateway
Route, manage, and analyze your LLM requests across multiple providers with a unified API interface.
#25carverauto/serviceradar
Open-Source Network Management, Monitoring, ITOM, and Security Analytics
#26agentic-os-org/ANOLISA
ANOLISA (Agentic Nexus Operating Layer & Interface System Architecture) | Agentic OS with runtime, security, observability, and Tokenless response compression for lower token usage and cost.
#27Dynatrace/dynatrace-operator
Automate Kubernetes observability with Dynatrace
#28api7/aisix
Open-source AI gateway for LLMs & AI agents, built in Rust. One OpenAI-compatible API for OpenAI, Anthropic, Gemini, Bedrock & more — routing, guardrails, caching, rate limits, observability.
#29antropos17/Aegis
Windows-first desktop oversight for AI agents: live monitoring, local security reviews, token usage, audit reports and opt-in action policies/MCP gateways. Experimental Hyper-V guest execution; macOS/Linux experimental.