# p-value Browse 21 online p-value tools for working with p-value data in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours. > Canonical page: https://elysiatools.com/en/tags/p-value ## Overview Explore 21 p-value tools for processing and working with p-value data through a browser-based interface, with no software installation required. ## Frequently asked questions ### What can I do with p-value tools? You can work with p-value data using the available browser-based tools in this category. The specific operation depends on the selected tool. ### Do I need to install software? No. You can use these p-value tools through the browser interface without installing software. ### How is my data handled? Processing runs on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours. ## Tools - [A/B Test Significance Calculator](https://elysiatools.com/en/tools/ab-test-significance-calculator): Compute conversion-rate or mean differences, 95%/99% confidence intervals, two-sided p-values (Z-test for proportions, Welch t for continuous metrics), lift, sample size for 80%/90% power, recommended experiment days, plus sequential-testing and Bonferroni multiple-comparison warnings. - [ANOVA Calculator](https://elysiatools.com/en/tools/anova-calculator): Run one-way ANOVA across multiple groups and inspect sums of squares, F statistic, and p-value - [Chi-Square Distribution Calculator](https://elysiatools.com/en/tools/chi-square-distribution-calculator): Calculate chi-square distribution PDF, CDF, and right-tail probability from a statistic and degrees of freedom - [Chi-Square Test Calculator](https://elysiatools.com/en/tools/chi-square-test-calculator): Run chi-square goodness-of-fit or independence tests from observed counts or contingency tables - [Fisher Exact Test Calculator](https://elysiatools.com/en/tools/fisher-exact-test-calculator): Run Fisher exact test for a 2 x 2 contingency table with exact one-sided or two-sided p-values - [Kruskal-Wallis Calculator](https://elysiatools.com/en/tools/kruskal-wallis-calculator): Compare three or more independent groups with the nonparametric Kruskal-Wallis H test - [Mann-Whitney U Test Calculator](https://elysiatools.com/en/tools/mann-whitney-u-test-calculator): Compare two independent samples with the nonparametric Mann-Whitney U rank-sum test - [McNemar Test Calculator](https://elysiatools.com/en/tools/mcnemar-test-calculator): Test paired binary categorical changes with exact binomial or continuity-corrected chi-square McNemar test - [One Proportion Z Test Calculator](https://elysiatools.com/en/tools/one-proportion-z-test-calculator): Run a one-proportion Z test from success count, trial count, and hypothesized population proportion - [One Sample t Test Calculator](https://elysiatools.com/en/tools/one-sample-t-test-calculator): Run a one-sample t test from raw data or summary statistics, including p-value and confidence interval - [One-Way ANOVA Calculator](https://elysiatools.com/en/tools/one-way-anova-calculator): Compare means across three or more independent groups with a one-way ANOVA F test - [P Value Calculator](https://elysiatools.com/en/tools/p-value-calculator): Calculate one-tailed or two-tailed p-values for Z, t, chi-square, and F test statistics - [Paired t Test Calculator](https://elysiatools.com/en/tools/paired-t-test-calculator): Run paired-sample t tests from before and after values or precomputed paired differences - [T Distribution Calculator](https://elysiatools.com/en/tools/t-distribution-calculator): Calculate Student t distribution PDF, CDF, tail probability, two-tail probability, and central area - [T-Test Calculator](https://elysiatools.com/en/tools/t-test-calculator): Run one-sample or two-sample t-tests from raw data and inspect t statistics, degrees of freedom, and p-values - [Two Proportion Z Test Calculator](https://elysiatools.com/en/tools/two-proportion-z-test-calculator): Compare two independent proportions with a pooled two-proportion Z test and confidence interval - [Two Sample t Test Calculator](https://elysiatools.com/en/tools/two-sample-t-test-calculator): Run an independent two-sample t test with pooled variance from raw data or summary statistics - [Two-Way ANOVA Calculator](https://elysiatools.com/en/tools/two-way-anova-calculator): Analyze two categorical factors and their interaction with a two-way ANOVA table - [Welch t Test Calculator](https://elysiatools.com/en/tools/welch-t-test-calculator): Run Welch two-sample t tests for independent groups with unequal variances from raw data or summary statistics - [Wilcoxon Signed-Rank Calculator](https://elysiatools.com/en/tools/wilcoxon-signed-rank-calculator): Run a paired nonparametric Wilcoxon signed-rank test from paired samples or differences - [Z Test Calculator](https://elysiatools.com/en/tools/z-test-calculator): Run one-sample Z tests for a mean with known population standard deviation or a single population proportion ## Related content - [Math](https://elysiatools.com/en/tags/math): Browse 502 online math tools for working with math operations, data, and files in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours. - [T Test](https://elysiatools.com/en/tags/t-test): Browse 15 online T Test tools for working with t test data and statistical tasks in your browser. - [Raw](https://elysiatools.com/en/tags/raw): Browse 49 online raw tools for processing, converting, validating, and managing raw files and data in your browser. - [Chi-Square Test](https://elysiatools.com/en/tags/chi-square-test): Explore 3 online chi-square test tools for working with chi-square analyses in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours. - [Confidence Interval](https://elysiatools.com/en/tags/confidence-interval): Browse 9 online confidence interval tools for working with statistical interval calculations in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours. - [Conversion](https://elysiatools.com/en/tags/conversion): Browse 369 online conversion tools for transforming data and files between supported formats. Use them in your browser with secure server-side processing.