Open source alternatives to Promptfoo

Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.

🐢 Open-Source Evaluation & Testing library for LLM Agents

The open-source LLMOps platform: prompt playground, prompt management, LLM evaluation, and LLM observability all in one place.

The platform for LLM evaluations and AI agent testing

Open-source toolkit for building, testing, and monitoring AI agents. Version prompts, run experiments, trace workflows, and catch issues before users do.

PromptPerfect - AI Prompt Generator and Optimizer

TensorZero builds open-source tools for production-grade LLM applications: LLM gateway, observability, optimization, evaluations, and experimentation.