Fewer test cases, better coverage
TestPairs uses pairwise test design to cover the most important combinations with far fewer test cases. Get insights and save time — without compromising.
Smart coverage
Covers all 2-way combinations and catches most error types efficiently.
Fewer cases
Significantly reduces the number of test cases — save time and focus your effort.
CSV export
Export test cases to your test management tool or automation.
What is pairwise testing?
When multiple parameters each have multiple values, the number of combinations grows explosively. Pairwise testing covers all 2-way combinations and catches most errors — without testing everything.
- Typically 60-80% fewer test cases than full combination.
- Flexible: add constraints to exclude impossible combinations.
- Results can be used directly in manual or automatic tests.
Why does it work? Empirical studies show that most errors are caused by a single value or pairwise interactions. By covering all 2-way combinations, you still find most errors — with a fraction of the test cases.
| Combination type | Number of test cases |
|---|---|
| All | 3 × 3 × 3 = 27 |
| Pairwise | 3 × 3 = 9 |
How TestPairs works
User ManualCreate attributes
Name attributes and add their possible values.
Add constraints
Exclude combinations that don't make sense in your context.
Generate & export
View the results and export them as CSV for further use — or use them directly in your exploratory testing.