Top TELEMETRY GitHub Repositories & Tools (2026)

Flight booking system built as .NET 10 microservices with Vertical Slice Architecture, DDD, CQRS, Event Sourcing, gRPC, RabbitMQ, Wolverine, PostgreSQL, MongoDB and .NET Aspire.

Open source observability platform for logs, metrics, traces, RUM (web, android, ios), 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.

AI-native open-source alternative to Vercel + Sentry + PostHog + Pingdom + Resend + E2B. 440+ CLI operations with drop-in skills for Claude Code, Codex & OpenCode — deployments, analytics, session replay, error tracking, OpenTelemetry, email, sandboxes & AI gateway in one self-hosted Rust binary.

CNCF Jaeger, a Distributed Tracing Platform

A next-gen FOSS self-hosted unified zero trust secure access platform that can operate as a remote access VPN, a ZTNA platform, API/AI/MCP gateway, a PaaS, an ngrok-alternative and a homelab infrastructure.

OpenTelemetry Collector

Contrib repository for the OpenTelemetry Collector

The open-source observability database. One columnar engine for metrics, logs, and traces, on object storage.

An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.

Portable Tool for an Ideal Windows Setup

The cross-harness self-improving memory layer for AI agents.

A terminal OpenTelemetry viewer inspired by otel-desktop-viewer

🍃spring-rs is a application framework written in rust inspired by java's spring-boot

The OpenTelemetry PHP Library

ApplicationInsights-dotnet

OpenTelemetry Ruby API & SDK, and related gems

Fastify 5 application boilerplate based on clean architecture, domain-driven design, CQRS, functional programming, vertical slice architecture for building production-grade applications 🚀

Free and Open Source telemetry overlay application for racing simulation

Go io/fs.FS filesystem implementations for various URL schemes

Open Python agent runtime and harness for production AI applications, with an SDK for governed tools, durable runs, sandboxes, budgets, execution evidence, and evaluation integrations.