Open Source LLM Observability & Evaluation using Playwright
A curated collection of the best open source tracing, monitoring, and evaluation platforms for LLM and AI-agent applications. using Playwright.
Open source LLM engineering platform for AI-powered applications
Stars
34,205Last commit
6 hours agoLicense
MIT
Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.
Open Source Alternative to:
Open-source LLM tracing & evaluation for AI optimization
Stars
11,328Last commit
5 hours agoLicense
Elastic-2.0
Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.
Open Source Alternative to:
Simulation-based testing and evaluation for AI agents
Stars
3,523Last commit
6 hours agoLicense
Apache-2.0
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.
Open Source Alternative to:
LLM observability: cost, latency, and traces in one place
Stars
13Last commit
5 days agoLicense
MIT
Drop-in observability platform for OpenAI, Anthropic, and Gemini that logs every request, tracks costs, traces agent workflows, and flags anomalies and PII.
Open Source Alternative to:
Capture – Capture screenshots, generate PDFs, scrape content, extract metadata, and automate browsers with one API.
Capture