Promptfoo
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Open source LLM prompt testing with automated benchmarks.
When not to use
LLM-specific. not for general app testing.
Free AI tools for AI test automation
Every tool listed here offers a free tier or freemium plan. No credit card required. · 522 reads
Free options
Giskard
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Open source ML model testing with vulnerability detection.
When not to use
ML models only. not for web or app testing.
Gentrace
Best for beginnersChecked 4h agoLink OKFree plan available
Why it wins
AI pipeline testing with regression detection and evaluation.
When not to use
AI-app specific. not for general testing.
Ragas
Best for beginnersChecked 4h agoLink OKFree plan available
Why it wins
Open source RAG evaluation with faithfulness and relevance metrics.
When not to use
RAG-specific. not for general testing.
Great Expectations Data Validation
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Automates testing with cross-browser coverage and synthetic monitoring.
When not to use
When you need manual testing or security assessments.
Apache JMeter Load Testing
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Automates testing with cross-browser coverage and synthetic monitoring.
When not to use
When you need manual testing or security assessments.
Apache Bench Simple Testing
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Automates testing with cross-browser coverage and synthetic monitoring.
When not to use
When you need manual testing or security assessments.
Artillery Load Testing
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Automates testing with cross-browser coverage and synthetic monitoring.
When not to use
When you need manual testing or security assessments.
Locust Python Load Testing
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Automates testing with cross-browser coverage and synthetic monitoring.
When not to use
When you need manual testing or security assessments.
k6 Developer Load Testing
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Simulates realistic load and measures application performance.
When not to use
When you need unit-level or integration testing.
Taurus Open Load Framework
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Simulates realistic load patterns for performance testing.
When not to use
When you need functional testing only.
Vegeta Go HTTP Benchmarking
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Simulates realistic load patterns for performance testing.
When not to use
When you need functional testing only.
Wrk Modern HTTP Benchmarking
Best freeChecked 4h agoLink OKFree plan available
Why it wins
Provides integrated functionality within the platform ecosystem.
When not to use
When you need specialized tooling outside scope.
ProtoTest
best for specialized workflowsChecked 4h agoDead linkFree plan available
Why it wins
ProtoTest is an automated testing framework for game logic and mechanics. Developers write test cases in visual scripting and run across all platforms.
When not to use
Skip if the workflow above is not a close match. compare the rest of this list first.
Comparison
| Tool | Pricing | Verified | Link |
|---|---|---|---|
| Promptfoo | Free plan available | Checked 4h ago | Try → |
| Giskard | Free plan available | Checked 4h ago | Try → |
| Gentrace | Free plan available | Checked 4h ago | Try → |
| Ragas | Free plan available | Checked 4h ago | Try → |
| Great Expectations Data Validation | Free plan available | Checked 4h ago | Try → |
| Apache JMeter Load Testing | Free plan available | Checked 4h ago | Try → |
| Apache Bench Simple Testing | Free plan available | Checked 4h ago | Try → |
| Artillery Load Testing | Free plan available | Checked 4h ago | Try → |
| Locust Python Load Testing | Free plan available | Checked 4h ago | Try → |
| k6 Developer Load Testing | Free plan available | Checked 4h ago | Try → |
| Taurus Open Load Framework | Free plan available | Checked 4h ago | Try → |
| Vegeta Go HTTP Benchmarking | Free plan available | Checked 4h ago | Try → |
| Wrk Modern HTTP Benchmarking | Free plan available | Checked 4h ago | Try → |
| ProtoTest | Free plan available | Checked 4h ago | Try → |