# Promptfoo

> Updated 2026-09-03 · type: tool · category: ai-infrastructure · status: active · rev 1

Eval + red-teaming; CI-friendly (verified)

- Open source: yes (MIT)
- Self-hostable: yes
- Pricing model: free
- Best for: Developer-first teams building and securing LLM applications who need to test prompts, evaluate models, and find vulnerabilities locally.
- Last verified: 2026-09-04

- **Canonical:** https://gtmstacker.com/registry/tool/promptfoo/
- **Source:** [github · github.com/promptfoo](https://github.com/promptfoo/promptfoo)
- **Tags:** ai-infrastructure
- **Repository:** https://github.com/promptfoo/promptfoo

## Is Promptfoo open source?

Yes — MIT-licensed.

## How much does Promptfoo cost?

It is free to use.

## Can I self-host Promptfoo?

Yes — it can be self-hosted.


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Eval + red-teaming; CI-friendly (verified)