Online biostatistics calculator for biological and medical research.

Choose a statistical test, analyze supported data locally in your browser, and prepare publication-ready figures. Your working dataset stays on your device.

Choose a test Start analysis

No account required · No data upload · Built for research workflows

RESOURCES

Statistical Resources for Research

Practical articles for common research questions and statistical concepts.

View all resources

Statistical test selection

Which Statistical Test Should I Use?

A practical overview of common statistical tests, data structures, and key considerations for research studies.

Read article

Comparing group means

T-test vs. ANOVA: How to Choose for Comparing Group Means

Learn when to use a t-test or one-way ANOVA, how the methods relate, and when follow-up comparisons are needed.

Read article

Study design

Paired vs. Independent Samples: How Study Design Changes Your Statistical Test

Learn how paired and independent samples differ, why the distinction matters, and how it changes a two-group comparison.

Read article

STATISTICAL TEST GUIDE

Choose with context

Start from your research question, outcome, and study design before selecting a supported statistical test.

LOCAL BIOSTATISTICS

Keep data close

Import de-identified data and run supported analyses in your browser, without sending working data to an application server.

RESEARCH FIGURES

Communicate results

Create and refine clear research figures while retaining the analysis details and assumptions behind them.