promptfoo

promptfoo stands out as a comprehensive, open-source solution designed for developers to test and secure their Large Language Model (LLM) applications. With over 30,000 developers relying on it, promptfoo offers a suite of features aimed at enhancing the security and reliability of AI applications. Its capabilities include automated red teaming, continuous monitoring, and the ability to run custom scans that detect a wide range of risks such as PII leaks, insecure tool use, cross-session data leaks, and more. The tool is built with developers in mind, offering a command-line interface, live reloads, and caching for efficient workflow. It requires no SDKs, cloud dependencies, or logins, making it accessible and straightforward to use. promptfoo is not only battle-tested by teams serving millions of users but also supported by an active open-source community. It provides easy abstractions for complex LLM testing, quality evaluations, and pre-deployment security scans through a simple declarative config. With detailed, actionable results, promptfoo enables developers to detect and fix critical failures, ensuring their LLM applications are both reliable and secure. Whether you're looking to enhance the security of your AI applications or streamline your testing process, promptfoo offers a robust, developer-friendly platform to achieve these goals.