Promptfoo vs Keploy (2026) — Which Is Better?
Comparing Promptfoo and Keploy side by side to help you choose the right AI tool for your needs. Promptfoo: Open-source CLI and library for testing and evaluating LLM prompts. Keploy: Test code changes against captured API behavior and dependencies.
Promptfoo
Open-source CLI and library for testing and evaluating LLM prompts.
Promptfoo is free to use.
Promptfoo Key Features
- LLM testing and evaluation framework
- Red teaming and adversarial testing
- Prompt injection testing
- Automated CI/CD testing
- Multiple provider support
Best Promptfoo Use Cases
- Testing LLM application security
- Evaluating prompt robustness
- Red teaming AI applications
- Automated AI quality assurance
View full Promptfoo profile · Promptfoo alternatives · All Developer Tools AI Tools
Keploy
Test code changes against captured API behavior and dependencies.
Visit the Keploy website for the latest pricing details. Check the official website for current plans, trial availability, and usage limits.
Keploy Key Features
- API test generation
- Production behavior replay
Best Keploy Use Cases
- Build regression checks from observed traffic
- Review a service change in CI
View full Keploy profile · Keploy alternatives · All QA AI Tools
Pricing Comparison: Promptfoo vs Keploy
Promptfoo: Promptfoo is free to use.
Keploy: Visit the Keploy website for the latest pricing details. Check the official website for current plans, trial availability, and usage limits.
Frequently Asked Questions
Which is better: Promptfoo or Keploy?
The best choice between Promptfoo and Keploy depends on your use case. Promptfoo — Open-source CLI and library for testing and evaluating LLM prompts.. Keploy — Test code changes against captured API behavior and dependencies.. Compare pricing and features above to find the best fit for your workflow.
Is Promptfoo free?
Promptfoo is free to use.
Is Keploy free?
Visit the Keploy website for the latest pricing details. Check the official website for current plans, trial availability, and usage limits.
What are the best alternatives to Promptfoo and Keploy?
Explore Promptfoo alternatives and Keploy alternatives on Nextool.ai for more options.