# Promptfoo

> Open-source CLI for testing prompts and red-teaming LLM apps.

- Official site: https://www.promptfoo.dev
- Category: Prompt Management & Testing
- Pricing: Open Source
- Works with: Most LLM providers
- Tags: open source, testing, cli, red teaming
- Listed on TellPrompt: https://tellprompt.com/tool/promptfoo

## About

Promptfoo lets you define test cases for your prompts and run them locally across models, comparing outputs side by side. It also includes security and red-teaming checks.

A developer favourite for catching prompt regressions before release.