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Code & Dev Tools · verified 2026-07-18

Promptfoo

Test prompts like code.

A CLI for declarative prompt tests and red-teaming, comparing providers side by side and failing CI on regressions.

Rating: 4.4 / 5
Pricing: Open source
Best for: Evals, Security, Developers
Platforms: CLI, Linux, macOS, Windows
Runs locally: Yes
Content policy: Standard filters

Matching filters

Writing code Research Security Evals & observability Team collaboration Open source Free or open source macOS Windows Linux Desktop app CLI / terminal Runs locally Engineers

What stands out

YAML test suites
Red-team scanning
Runs offline in CI

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