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Promptfoo
Open-source prompt testing and red-teaming framework for LLM outputs, regressions, evaluations, and security checks.
by Promptfoo·added 2026-04-27·21,394 source repo stars·
CLI
HarnessCLI
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Open the source and read safety notes before installing.
Schema details
- Install type
- copy
- Troubleshooting
- No
Source repository stats
- Scope
- Source repo
- Stars
- 21,394 source repo stars
- Forks
- 1,867
- Updated
- 2026-05-19T11:24:05Z
Tool listing metadata
- Website
- https://www.promptfoo.dev
- Pricing
- open-source
- Disclosure
- heyclaude_pick
- Application category
- DeveloperApplication
- Operating system
- macOS, Windows, Linux, Web
Full copyable content
## Editorial notes
Promptfoo is a practical fit for teams that want repeatable prompt tests, security checks, and evaluation gates in CI.
## Disclosure
Editorial listing. No paid placement or affiliate link is used.About this resource
Editorial notes
Promptfoo is a practical fit for teams that want repeatable prompt tests, security checks, and evaluation gates in CI.
Disclosure
Editorial listing. No paid placement or affiliate link is used.
Content outline
#prompt-testing#security
Source citations
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