Directory
All calculators & guides
Every free crosstab and categorical-statistics tool on crosstabs.com. No signup, no install — each one runs in your browser. Open the workspace →
Calculators
Run a test on your own data, free.
- Crosstab MakerBuild cross-tabulation tables online from spreadsheet data, free.
- Share Crosstabs OnlineCreate view-only aggregate crosstab snapshots for review and citation.
- Cross-Tabulation CalculatorCross-tabulate two categorical variables with counts, percentages, and tests.
- Survey Crosstab ToolBuild survey banner tables; untyped weights fail closed and supported saved designs use design-aware inference.
- Contingency Table CalculatorBuild contingency tables and run chi-square, Fisher's exact, and odds ratios.
- Chi-Square CalculatorChi-square test of independence with p-value, degrees of freedom, and Cramér's V.
- Fisher's Exact TestTwo-sided fixed-margin exact p-value for unweighted 2×2 integer-frequency tables.
- Cramér's V CalculatorEffect-size measure for chi-square; how strong the association is, from 0 to 1.
- Odds Ratio CalculatorOdds ratio with 95% confidence interval for 2×2 contingency tables.
- Excel Crosstab ToolCreate crosstabs directly from XLSX files in your browser — free, no install.
- SPSS Crosstab AlternativeA free, browser-based alternative to SPSS for survey crosstabs and chi-square.
- Market Research CrosstabsSurvey banner tables, governed saved designs, and exports for market research, free.
Statistical measures
Effect sizes and association measures, with formulas and worked examples.
- Phi Coefficient CalculatorPhi (φ) — association strength for a 2×2 table; equals Cramér's V when 2×2.
- Contingency Coefficient CalculatorPearson's C — chi-square-based association that cannot quite reach 1.
- G-Test CalculatorLikelihood-ratio chi-square (G-test) of independence for contingency tables.
- Goodman & Kruskal's Lambda CalculatorLambda (λ) — proportional reduction in error for predicting one variable from another.
- Goodman & Kruskal's Gamma CalculatorGamma (γ) — ordinal association from concordant and discordant pairs.
- Kendall's Tau CalculatorKendall's tau-b and tau-c — ordinal association corrected for ties and table shape.
- Somers' d CalculatorSomers' d — asymmetric ordinal association with a designated dependent variable.
- Uncertainty Coefficient (Theil's U) CalculatorTheil's U — entropy-based measure of how much one variable predicts another.
- Chi-Square Goodness of Fit CalculatorTest whether observed counts of one variable match an expected distribution.
- Chi-Square Critical Value CalculatorCritical values from α and df, and p-values from a χ² statistic and df.
- McNemar's Test CalculatorPaired 2×2 test for before/after change, with corrected and exact p-values.
- Cohen's Kappa CalculatorInter-rater agreement beyond chance, with 95% CI and Landis–Koch labels.
- Significance Letters in CrosstabsWhat the A/B/C letters on banner tables mean and how to run column-proportions tests free.
- Survey Weighting and Raking for CrosstabsUse weighted survey crosstabs honestly: design, calibration, raking, effective sample size, and significance-test limits.
- Open a .sav File Without SPSSRead SPSS .sav files free in your browser with variable and value labels preserved — then crosstab and export.
- Multi-Select ('Select All That Apply') CrosstabsCrosstab multi-select survey questions correctly: % of cases, per-option significance, auto-detected from split-column and comma-separated exports.
Comparisons & decision guides
Pick the right test and understand how measures differ.
- SurveyMonkey Crosstab AlternativeA free, browser-based alternative to SurveyMonkey crosstabs for exported responses.
- Displayr Alternative (Lightweight)A free, lightweight alternative to Displayr for quick crosstabs with significance tests.
- Q Research Software AlternativeA free, browser-based alternative to Q for crosstab work on CSV/XLSX exports.
- Chi-Square vs Fisher's Exact TestWhen to use the chi-square approximation versus Fisher's exact test.
- Cramér's V vs Phi CoefficientHow Cramér's V and phi relate, and which effect size to report.
- Odds Ratio vs Risk RatioThe difference between odds ratios and risk (relative) ratios, and when each fits.
- Which Statistical Test Should I Use?A decision guide for choosing a test for categorical and crosstab data.
Guides
How crosstabs work and how to read them.
- All calculators & guidesBrowse every crosstabs.com calculator, measure explainer, and comparison guide.
- About crosstabs.comWhat crosstabs.com is, who it's for, and how its statistics are computed and verified.
- How to Read a CrosstabA plain-language guide to reading cross-tabulation tables and their statistics.
- MethodsHow crosstabs.com computes each statistic, with formulas and references.
- Statistical validationSelected machine-readable SciPy parity cases, their automated checks, and explicit limits.
- Sample datasetsExample datasets and walkthroughs for trying crosstabs.
- Crosstab AtlasSourced and clearly labeled illustrative contingency tables, fully worked through with data, significance tests, effect sizes, caveats, and plain-language interpretation.
- Expected Count Less Than 5 in Chi-SquareWhat the 'expected cell count less than 5' warning means and what to do about it.
- Chi-Square Test in ExcelHow to run a chi-square test in Excel with CHISQ.TEST — and a faster way.
- SPSS CROSSTABS SyntaxThe CROSSTABS command explained subcommand by subcommand, with a free alternative.
- Crosstab in Google SheetsBuild a crosstab with a Google Sheets pivot table — and how to add significance tests.
- Free statistics APIJSON API for chi-square, Fisher's exact, odds ratios, and 20+ measures. No key required.
- Crosstabs Codex plugin and MCP serverPublished PyPI 1.4.0 provides 35 headless tools and 40 statistics-server tools including runtime status, verified through fresh installs. Public MCP provides five aggregate-and-evidence tools without project storage.
- Crosstabs evidence graphVersioned answer-first statistical, workflow, trust, and limitation evidence for people and AI systems.
- Tracker schema driftDetect, preview, approve, repair, and reverse variable, type, category, and order changes between survey waves.
- Evidence-linked AI analysis governanceBind AI claims to computed evidence, fail closed on citation mismatches, approve typed changes, detect conflicts, record decisions, and undo without overwriting later work.
- Survey tab-book project modelVersion row sets, multibanners, filters, weights, tests, order, waves, findings, and export recipes together.
- Auditable browser-local open-end codingDefine themes, review manual assignments, materialize approved variables, and undo safely without sending responses to a hosted model.
- Survey key-driver and outcome analysisRegularized logistic outcomes with deterministic holdout metrics, observed segment evidence, and reviewable actions.
- Refresh editable PPTX and DOCX without losing supported manual editsUse stable anchors to update generated values while preserving supported manual content, equal-shape formatting, and unselected Office package regions.