Promptfoo vs StackHawk
Features, pricing and Editor Score side by side — to help you pick the right coding & development tool in 2026.
Quick verdict
Promptfoo edges it by 0.2 on our Editor Score. Pick Promptfoo if you want automated red teaming with application-specific attack generation; choose StackHawk for dynamic application security testing against running apps. On pricing, each has a free or freemium plan, so cost isn't the deciding factor here.
Promptfoo vs StackHawk at a Glance
| Pricing | Freemium | Freemium |
| Free tier | ||
| Best for | automated red teaming with application-specific attack generation | dynamic application security testing against running apps |
Promptfoo
Promptfoo generates custom attacks against your own AI applications to find vulnerabilities including prompt injections, jailbreaks, data leaks, business rule violations and insecure tool use. It covers red teaming, evaluations, code scanning, model security, guardrails and MCP, with an open-source core.
- Generates attacks for your specific application rather than checking a list
- Business rule violation testing addresses rules that exist only in a prompt
- Names insecure tool use, which is the risk that grows as agents can act
- Open source core makes a security tool inspectable rather than trusted
- Finds attacks it knows how to generate; novel techniques appear constantly
- Results describe the system as configured, and configurations change
- Cannot fix architecture — a dangerous permission needs removing, not filtering
StackHawk
StackHawk review on AInexfinder — freemium AI tool for Coding & Development. Features, pricing notes, and alternatives.
- Real runtime coverage that finds exploitable issues
- Tight integration with AI coding agents and CI/CD
- Automated find-fix-verify workflow
- Dynamic application security testing against running apps
- DAST requires a running environment to test against
- Top features and team usage need paid plans
- Team collaboration tools depend on your plan
Which Should You Choose?
Choose Promptfoo if…
- you want automated red teaming with application-specific attack generation
- a free or freemium plan is important
Choose StackHawk if…
- you want dynamic application security testing against running apps
- a free or freemium plan is important
Promptfoo vs StackHawk: The Verdict
Your use case decides this one: Promptfoo leans into automated red teaming with application-specific attack generation, while StackHawk is built for dynamic application security testing against running apps. Weigh features and pricing for your workflow. Both have a free or freemium tier, so spin up each and keep the one that clicks.
Frequently Asked Questions
Is Promptfoo better than StackHawk?
Neither is universally better — it depends on your budget and which features matter most. The side-by-side breakdown above shows where each one wins.
What is the difference between Promptfoo and StackHawk?
Promptfoo (freemium) is best for automated red teaming with application-specific attack generation, while StackHawk (freemium) is best for dynamic application security testing against running apps. See the full feature and pricing comparison above.
Is Promptfoo or StackHawk cheaper?
Both have paid plans — pricing depends on your usage tier. Open each tool's review for current prices, and watch for free trials.
Which is better for beginners, Promptfoo or StackHawk?
Promptfoo is usually the easier starting point thanks to a lower barrier to entry. Beginners should favour a free tier and a simple interface over raw power.
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About the Authors
AI Tools Comparison Analyst
Olivia runs side-by-side comparisons and benchmarks, digging into pricing, features, and real-world performance so readers can choose between competing AI tools with confidence.
Senior AI Tools Reviewer
Daniel reviews AI tools the slow way — by actually using them on real projects. His reviews cover what works, what breaks, and who each tool is genuinely a good fit for.
Keep exploring
Last updated October 2026. Comparisons are ranked by our Editor Score (features, value and pricing, blended with verified user reviews where a tool has them) — see our methodology.