Awesome Observability

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.

Like Prometheus, but for logs.

Analyzes resource usage and performance characteristics of running containers.

GoReplay 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.

Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.

Top-like interface for container metrics

:tropical_fish: Beats - Lightweight shippers for Elasticsearch & Logstash

Open-source, high-performance AI gateway that works as your LLM gateway, MCP gateway and agent gateway. One OpenAI-compatible API for 10,000+ models, with failover, load balancing, semantic caching, virtual keys, budgets and MCP Code Mode. Works with any SDK or agent and adds under 200µs of overhead at 5k RPS.

Prometheus Alertmanager

An open-source and enterprise-level monitoring system.

Add-on agent to generate and expose cluster-level metrics.

A horizontally scalable, highly available, multi-tenant, long term Prometheus.

Grafana Tempo is a high volume, minimal dependency distributed tracing backend.

M3 monorepo - Distributed TSDB, Aggregator and Query Engine, Prometheus Sidecar, Graphite Compatible, Metrics Platform

Hubble - Network, Service & Security Observability for Kubernetes using eBPF

eBPF Observability - Distributed Tracing and Profiling

Observe any stack, any service and any data, using any UI components you prefer, never missing any X factors and resolve them before they become real problems.

Distributed tracing without code changes. 🚀 Instantly monitor any application using OpenTelemetry and eBPF

OpenTelemetry Collector distribution with programmable pipelines

Simple gRPC benchmarking and load testing tool

OpenLIT is the open-source agent harness engineering platform: trace, evaluate, guard, and improve everything around the model in your AI agents, on OTEL.

🦥 Easy and simple Prometheus SLO (service level objectives) generator

Open source framework for processing, monitoring, and alerting on time series data

Open Source HTTP Reverse Proxy Cache and Time Series DB Query Accelerator

NVIDIA GPU metrics exporter for Prometheus leveraging DCGM

Open source monitoring and visualization UI for the TICK stack

[Moved to cloudprober/cloudprober] An active monitoring software to detect failures before your customers do.

[DEPRECATED] Promscale is a unified metric and trace observability backend for Prometheus, Jaeger and OpenTelemetry built on PostgreSQL and TimescaleDB.

Export Kubernetes events to multiple destinations with routing and filtering

Visualize the traffic of your clusters in realtime from Prometheus data

KubeEye aims to find various problems on Kubernetes, such as application misconfiguration, unhealthy cluster components and node problems.

Turning Kubernetes Events into spans

A utility for managing Jsonnet dashboards against the Grafana API

An easy-to-use library for creating load testing applications

A programmable, observable and distributed job orchestration system.

A load generator in Go language

A lightweight schema-on-read analytics in a single binary

Observability Demo App

Fast and lightweight log transport and processing.

World's first fully integrated and fully Automated Kubernetes management and orchestration solution

Unified observability for logs, metrics and traces — low overhead instrumentation (Rust, Unreal Engine 5), OTLP ingestion, SQL analytics on DataFusion over Parquet, presentation through notebooks, Grafana and Python. Self-hosted.

Son of Vegeta, with more skills (mainly gRPC support)