Top OPENTELEMETRY 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

OpenTelemetry Collector distribution with programmable pipelines

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.

Kubernetes Operator for OpenTelemetry Collector

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 website and documentation

The OpenTelemetry PHP Library

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 🚀

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

An open-source, cloud-native, high-performance gateway unifying multiple LLM providers, from local solutions like Ollama to major cloud providers such as OpenAI, Groq, Cohere, Anthropic, Cloudflare and DeepSeek.

Embrace's Swift SDK built on OpenTelemetry