🧮 Statistics Toolkit

Lab Grimoire provides a suite of free, browser-based statistical calculators designed for students, researchers, and data analysts. Every computation runs entirely in your browser — no data is uploaded, no account is needed, and there is zero tracking.

Whether you need quick descriptive statistics for a lab report, a t-test for your thesis, or PCA for exploratory analysis of multivariate data, these tools give you publication-ready results in seconds. Each tool includes educational content to help you understand not just how to run the analysis, but why it works and when to use it.

Available Tools

• Descriptive Statistics — Mean, median, standard deviation, quartiles, box plots, skewness, and kurtosis.
• T-Test — Independent, paired, and Welch t-tests with Cohen's d effect size.
• ANOVA — One-way ANOVA, Kruskal-Wallis test, Tukey HSD post-hoc comparisons, and eta-squared.
• Correlation — Pearson and Spearman correlation with scatter plot visualization.
• Linear Regression — Simple linear regression with confidence bands, residual analysis, and R².
• PCA — Principal Component Analysis with score plot, scree plot, and loadings matrix.

All tools accept data pasted directly from Excel or Google Sheets. Results include effect sizes, confidence intervals, and interpretive guidance following APA reporting standards.