Online T-Test Calculators & Statistical Tools

Perform statistical hypothesis testing with 12 online t-test tools. Compare sample means, calculate p-values, and analyze datasets securely without software installation.

Our collection of 12 t-test tools helps you perform statistical hypothesis testing directly from your browser. Whether you need to run independent samples, paired samples, or one-sample t-tests, these tools process your datasets on our secure servers to calculate p-values, t-statistics, and degrees of freedom instantly.

12 Tools

Developer & Web
API Breaking Changes Detector & Migration Planner
Compare two OpenAPI 3.x schemas, identify breaking changes, grade client impact, and suggest migration or compatibility strategies
Developer & Web
API Contract Mutation Tester
Mutate OpenAPI request fields into semantically risky variants and optionally send them to a real backend to check defensive validation coverage
Developer & Web
API Contract Stress Tester
Generate boundary-value test cases from an OpenAPI 3.x document and optionally send them to a real backend to spot contract mismatches
Math, Date & Finance
Fisher Exact Test Calculator
Run Fisher exact test for a 2 x 2 contingency table with exact one-sided or two-sided p-values
Math, Date & Finance
One Sample t Test Calculator
Run a one-sample t test from raw data or summary statistics, including p-value and confidence interval
Math, Date & Finance
P Value Calculator
Calculate one-tailed or two-tailed p-values for Z, t, chi-square, and F test statistics
Math, Date & Finance
Paired t Test Calculator
Run paired-sample t tests from before and after values or precomputed paired differences
Documents & PDF
PDF RTL/LTR Support Tester (PDF双向文字测试)
Preview left-to-right and right-to-left text flow in PDF with bidi reordering
Math, Date & Finance
T Distribution Calculator
Calculate Student t distribution PDF, CDF, tail probability, two-tail probability, and central area
Math, Date & Finance
T-Test Calculator
Run one-sample or two-sample t-tests from raw data and inspect t statistics, degrees of freedom, and p-values
Math, Date & Finance
Two Sample t Test Calculator
Run an independent two-sample t test with pooled variance from raw data or summary statistics
Math, Date & Finance
Welch t Test Calculator
Run Welch two-sample t tests for independent groups with unequal variances from raw data or summary statistics

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FAQ

What types of t-tests can I perform with these tools?

You can perform various statistical analyses, including independent samples t-tests, paired samples t-tests, and one-sample t-tests to compare means and determine statistical significance.

Do I need to install any statistical software to use these tools?

No, all tools operate directly within your web browser. The calculations and data processing are executed on our secure servers, eliminating the need for local software installations.

How is my dataset and uploaded data secured?

Your privacy is protected: text inputs are never stored on our servers, and any uploaded data files are automatically and permanently deleted after 6 hours.