Top Observability repositories on GitHub

Tracing, metrics, logs, and debugging tools for production systems.

Ranked by stars across 696 repositories tagged observability. Refreshed daily.

1
netdata/netdata★ 80,567 · ⑂ 6,630
The fastest path to AI-powered full stack observability, even for lean teams.
- monitoring
- docker
- kubernetes
- cncf
- prometheus
- netdata
2
langfuse/langfuse★ 34,763 · ⑂ 3,793
🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.
- analytics
- llm
- llmops
- large-language-models
- openai
- self-hosted
3
SigNoz/signoz★ 32,123 · ⑂ 2,494
SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps.
- observability
- application-monitoring
- opentelemetry
- distributed-tracing
- apm
- go
4
mlflow/mlflow★ 28,010 · ⑂ 6,323
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.
- machine-learning
- ai
- ml
- mlflow
- apache-spark
- model-management
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5
cilium/cilium★ 25,322 · ⑂ 4,079
eBPF-based Networking, Security, and Observability
- containers
- bpf
- security
- kubernetes
- kubernetes-networking
- cni
6
apache/skywalking★ 24,954 · ⑂ 6,634
APM, Application Performance Monitoring System
- skywalking
- observability
- apm
- service-mesh
- dapper
- distributed-tracing
7
PrefectHQ/prefect★ 23,859 · ⑂ 2,527
Prefect is a workflow orchestration framework for building resilient data pipelines in Python.
- python
- workflow
- data-engineering
- data-science
- workflow-engine
- prefect
8
jaegertracing/jaeger★ 23,218 · ⑂ 3,121
CNCF Jaeger, a Distributed Tracing Platform
- distributed-tracing
- cncf
- tracing
- observability
- jaeger
- opentelemetry
9
mikeroyal/Self-Hosting-Guide★ 22,833 · ⑂ 1,153
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.
- self-hosted
- selfhosted
- home-assistant
- wireguard
- decentralized
- self-hosting
10
vectordotdev/vector★ 22,583 · ⑂ 2,285
A high-performance observability data pipeline.
- logs
- metrics
- observability
- forwarder
- events
- stream-processing
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11
pranshuparmar/witr★ 22,382 · ⑂ 781
Why is this running? Trace any process, port, container, or file back to what started it - CLI + TUI.
- cli
- devops
- freebsd
- golang
- linux
- macos
12
openobserve/openobserve★ 22,000 · ⑂ 1,093
Open source observability platform for logs, metrics, traces, RUM, Session replay, pipelines, SLO and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.
- logs
- metrics
- traces
- analytics
- elasticsearch
- jaeger
13
NirDiamant/agents-towards-production★ 21,472 · ⑂ 2,849
End-to-end, code-first tutorials for building production-grade GenAI agents. From prototype to enterprise deployment.
- agent
- agent-framework
- agents
- ai-agents
- genai
- generative-ai
14
elastic/kibana★ 21,290 · ⑂ 8,632
Your window into all of your data
- kibana
- elasticsearch
- visualizations
- metrics
- observability
- dashboards
15
VictoriaMetrics/VictoriaMetrics★ 17,734 · ⑂ 1,744
VictoriaMetrics: fast, cost-effective monitoring solution and time series database
- tsdb
- prometheus
- promql
- influxdb
- graphite
- opentsdb
16
openzipkin/zipkin★ 17,462 · ⑂ 3,098
Zipkin is a distributed tracing system
- zipkin
- distributed-tracing
- tracing
- openzipkin
- observability
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17
kubesphere/kubesphere★ 17,051 · ⑂ 2,756
The container platform tailored for Kubernetes multi-cloud, datacenter, and edge management ⎈ 🖥 ☁️
- devops
- cncf
- cloud-native
- servicemesh
- kubesphere
- kubernetes
18
Effect-TS/effect★ 16,103 · ⑂ 748
Build production-ready applications in TypeScript
- effect
- javascript
- cli
- opentelemetry
- platform
- schema
19
apache/doris★ 15,957 · ⑂ 3,950
Apache Doris is a real-time analytics and hybrid search database for AI agents.
- olap
- database
- hudi
- iceberg
- real-time
- sql

20
thanos-io/thanos★ 14,207 · ⑂ 2,369
Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.
- prometheus
- google-cloud-storage
- high-availability
- prometheus-ha-pairs
- thanos
- s3
21
ccfos/nightingale★ 13,294 · ⑂ 1,776
Nightingale is to monitoring and alerting what Grafana is to visualization.
- monitoring
- time-series
- nightingale
- tsdb
- open-falcon
- alerting
22
kubeshark/kubeshark★ 12,082 · ⑂ 549
eBPF-powered network observability for Kubernetes. Indexes L4/L7 traffic with full K8s context, decrypts TLS without keys. Queryable by AI agents via MCP and humans via dashboard.
- kubernetes
- golang
- rest
- grpc
- devops
- sniffer
23
grafana/pyroscope★ 11,659 · ⑂ 802
Continuous Profiling Platform. Debug performance issues down to a single line of code
- continuous-profiling
- profiling
- performance
- golang
- ruby
- python
24
Tracer-Cloud/opensre★ 11,123 · ⑂ 1,623
Build your own AI SRE agents. The open source toolkit for the AI era.
- ai-sre
- alerting
- datadog
- grafana
- observability
- remediation
25
getagentseal/codeburn★ 11,067 · ⑂ 840
Free, local tool to track AI coding token usage and cost across 37 tools and agents (Claude Code, Cursor, Codex, Gemini and more), by model, project, and task. npx codeburn
- ai-coding
- claude-code
- cli
- codex
- cost-tracking
- developer-tools

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The list above ranks the most-starred public repositories tagged with the Observability topic, drawn from the public GitHub graph. Across 696 repositories tagged this way, the maintainers and top contributors are a tight cluster of the people actually building Observability.

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How this list is built

Refolk searched GitHub for public repositories tagged with the Observability topic, ranked them by stargazer count, and kept those with at least 50 stars. The list refreshes once a day.

Last refreshed: Fri, 18 Sep 2026 07:52:21 GMT

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By stars, with forks and recent activity as tiebreakers, read from the public GitHub API. The methodology section above has the details.

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The ranking re-renders at least daily. Last refreshed: Fri, 18 Sep 2026 07:52:21 GMT.

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