Promptfoo
Promptfoo is a CLI tool for testing LLM prompts against test cases, catching regressions, and comparing models. Supports red-teaming, assertion-based testing, and CI/CD integration. Best for teams that need reliable prompt evaluation and quality assurance for production AI.
AI ToolFree Tier: Fully free open-source; local-firstCompany: PromptfooCategory: Safety & EthicsOpen Source: YesQuick Start: npm install -g promptfoo → Write a promptfooconfig.yaml with your prompts and test cases → Run 'promptfoo eval' to see pass/fail resultsVisit Promptfoo