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langfuse

langfuse / langfuse

Star 27.1k

🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

open-source playground monitoring analytics evaluation self-hosted ycombinator openai observability autogen large-language-models llm prompt-engineering langchain llmops llama-index prompt-management llm-evaluation llm-observability
  • Updated May 12, 2026
  • TypeScript
signoz

SigNoz / signoz

Star 26.9k

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

react go open-source typescript monitoring log reactjs metrics nextjs logs prometheus self-hosted apm tracing observability distributed-tracing application-monitoring jaeger good-first-issue opentelemetry
  • Updated May 12, 2026
  • TypeScript
mlflow

mlflow / mlflow

Star 25.9k

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.

open-source machine-learning ai apache-spark evaluation ml openai agents observability model-management mlops mlflow agentops prompt-engineering ai-governance langchain llmops llm-evaluation
  • Updated May 12, 2026
  • Python
Self-Hosting-Guide

mikeroyal / Self-Hosting-Guide

Star 19.7k

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.

search linux ssh open-source home-automation raspberry-pi oauth awesome privacy authentication docker-compose decentralized selfhosted self-hosted reverse-proxy awesome-list home-assistant self-hosting observability wireguard
  • Updated Jun 27, 2025
  • Dockerfile

openobserve / openobserve

Star 18.8k

Open source observability platform for logs, metrics, traces, frontend monitoring, pipelines and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.

elasticsearch kibana monitoring analytics splunk metrics grafana logs prometheus datadog apm rust-lang log-management observability traces log-analytics jaeger log-search opentelemetry openobserve
  • Updated May 12, 2026
  • TypeScript

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