Promptfoo: LLM evals & red teaming

promptfoo is a developer-friendly local tool for testing LLM applications. Stop the trial-and-error approach - start shipping secure, reliable AI apps.

Website ·
Getting Started ·
Red Teaming ·
Documentation ·
Discord

Quick Start

``sh


Install and initialize project

npx promptfoo@latest init

Run your first evaluation

npx promptfoo eval
``

See Getting Started (evals) or Red Teaming (vulnerability scanning) for more.

What can you do with Promptfoo?

- Test your prompts and models with automated evaluations
- Secure your LLM apps with red teaming and vulnerability scanning
- Compare models side-by-side (OpenAI, Anthropic, Azure, Bedrock, Ollama, and more)
- Automate checks in CI/CD
- Review pull requests for LLM-related security and compliance issues with code scanning
- Share results with your team

Here's what it looks like in action:

!prompt evaluation matrix - web viewer

It works on the command line too:

!prompt evaluation matrix - command line

It also can generate security vulnerability reports:

!gen ai red team

Why Promptfoo?

- 🚀 Developer-first: Fast, with features like live reload and caching
- 🔒 Private: LLM evals run 100% locally - your prompts never leave your machine
- 🔧 Flexible: Works with any LLM API or programming language
- 💪 Battle-tested: Powers LLM apps serving 10M+ users in production
- 📊 Data-driven: Make decisions based on metrics, not gut feel
- 🤝 Open source: MIT licensed, with an active community

Learn More

- 📚 Full Documentation
- 🔐 Red Teaming Guide
- 🎯 Getting Started
- 💻 CLI Usage
- 📦 Node.js Package
- 🤖 Supported Models
- 🔬 Code Scanning Guide

Contributing

We welcome contributions! Check out our contributing guide to get started.

Join our Discord community for help and discussion.