Promptfoo (open source)
Visit pageEval, red teaming, and regression testing for LLM apps. MIT license.
Open-Source and Frameworks
Promptfoo
Open-source LLM evaluation, red teaming, and security testing.
About Promptfoo
Promptfoo is widely adopted for prompt evaluation and security testing. Built-in red-teaming attack library, CI/CD integration, and a hosted enterprise tier for team use. The de facto open-source choice for LLM eval pipelines.
Notable open-source projects and reference frameworks used by enterprises and consultancies to harden AI deployments.
Products
Promptfoo products and platform components
Direct links to the vendor's product pages. Last reviewed 2026-05-07.
Promptfoo Enterprise
Visit pageHosted platform with team collaboration, dashboards, and compliance reports.
CWS engagement
How CWS works with Promptfoo
CWS helps customers evaluate, deploy, and operate Promptfoo products as part of an AI security program. Engagements span vendor selection, proof-of-concept design, integration with existing controls, day-2 operations, and exit planning if the fit changes over time.
CWS does not resell Promptfoo. The recommendation is honest, evidence-based, and tied to the customer's posture gaps — not to channel economics.
Engage CWS on Promptfoo Related — same category
More vendors in Open-Source and Frameworks
NVIDIA NeMo Guardrails
Open-source toolkit for adding programmable guardrails to LLM apps.
View profileGarak
Open-source LLM vulnerability scanner.
View profilePyRIT
Microsoft's open-source Python Risk Identification Toolkit for GenAI.
View profileGiskard
Open-source LLM testing framework with hosted hub.
View profileLLM Guard
Open-source security toolkit for LLM-powered applications.
View profileNot sure if Promptfoo fits your gaps?
The free AI Posture Check scores your security across six dimensions in 10 minutes. Use the result to shortlist vendors that fit your actual posture — not the loudest demo.
Take the AI Posture Check