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Head-to-head · AI Security Testing Tools

PromptGuard vs Promptfoo

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score PromptGuard #1 in AI Security Testing Tools 9.3/10 Free plan Free plan✓ 5 of 5 features Visit PromptGuard
Promptfoo #5 in AI Security Testing Tools 8.7/10 Free plan Free plan✓ 0 of 5 features Visit Promptfoo

PromptGuard leads on 0 checks, Promptfoo on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePromptGuard · 9.3/10
  • Free planboth
  • Most featuresPromptGuard · 5 of 5

PromptGuard scores higher on our rubric for ai security testing tools: 9.3 against 8.7 out of 10; our editors rank them #1 and #5.

PromptGuard is the better fit for teams wanting broad, affordable red teaming. Promptfoo is the better fit for developers building evaluation into CI/CD.

  • PromptGuard fits best

    Teams wanting broad, affordable red teaming

  • Promptfoo fits best

    Developers building evaluation into CI/CD

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Side by side

Feature PromptGuard 9.3/10 Visit ↗ Promptfoo 8.7/10 Visit ↗
At a glance
Editor score 9.3 8.7
Ranking #1 in AI Security Testing Tools #5 in AI Security Testing Tools
Best for Teams wanting broad, affordable red teaming Developers building evaluation into CI/CD
Pricing model Free plan + paid Free plan + paid
Starting price $19/seat/mo —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted, Desktop, Browser extension Cloud, Self-hosted
Platforms Web, Windows, macOS, Chrome extension Web
Support Email, Community, Docs Community, Docs
Compliance GDPR, SSO/SAML SOC 2, ISO 27001
Integrations 12 integrations 12 integrations
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features PromptGuard 5/5 · Promptfoo 0/5
Prompt injection tests ✓ (best) Not checked yet
Jailbreak tests ✓ (best) Not checked yet
Data leakage tests ✓ (best) Not checked yet
Unsafe output tests ✓ (best) Not checked yet
Custom test cases ✓ (best) Not checked yet
Specs
Deployment mode Both Not checked yet
Our review
Pros
  • 20+ attack vectors plus custom and fuzzed adversarial variants
  • CI/CD regression testing, security grades, and vulnerability reports
  • Web, desktop, browser extension, API, and self-hosted deployment
  • Open-source Community plan includes all LLM evaluation features
  • Automated red teaming, vulnerability scanning, and CI/CD quality gates
  • Supports web, API, and self-hosted deployments with broad integrations
Cons
  • Free plan limits usage to 20,000 scans per month and one API key
  • Advanced capabilities are concentrated in paid and higher-tier plans
  • Premium offers no listed feature highlights
  • Enterprise and On-Premise pricing is custom
  • Advanced collaboration and monitoring require a paid tier
  • The product is focused on AI application testing rather than general security
Our verdict

PromptGuard is an AI security platform for teams testing and protecting applications that use large language models. It sits between applications and LLM providers to detect prompt injection, jailbreak attempts, PII exposure, data…

Read the review →

Promptfoo is an open-source CLI and library for evaluating, testing, and red-teaming large-language-model applications. It is aimed at developers and teams building AI applications who need to benchmark prompts, models, and RAG pipelines,…

Read the review →
  1. PromptGuardAI Security Testing Tools 9.3Free plan
  2. PromptfooAI Security Testing Tools 8.7Free plan

Strengths and trade-offs

  • PromptGuard — where it wins

    • 20+ attack vectors plus custom and fuzzed adversarial variants
    • CI/CD regression testing, security grades, and vulnerability reports
    • Web, desktop, browser extension, API, and self-hosted deployment

    Where it doesn't

    • Free plan limits usage to 20,000 scans per month and one API key
    • Advanced capabilities are concentrated in paid and higher-tier plans
    • Premium offers no listed feature highlights

  • Promptfoo — where it wins

    • Open-source Community plan includes all LLM evaluation features
    • Automated red teaming, vulnerability scanning, and CI/CD quality gates
    • Supports web, API, and self-hosted deployments with broad integrations

    Where it doesn't

    • Enterprise and On-Premise pricing is custom
    • Advanced collaboration and monitoring require a paid tier
    • The product is focused on AI application testing rather than general security

More comparisons

All AI security testing tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update