CSV Cleaner
Clean rows, normalize columns, and remove duplicates quickly.
Enhanced Category
Data & Statistics Tools
Data and statistics tools for cleaning inputs, calculating distributions, running common tests, comparing values, and turning structured data into charts.
Start with these tools
Use this category when the job is to inspect data quality, summarize a sample, estimate uncertainty, test a hypothesis, or create a quick chart for review.
ANOVA One Way Calculator
Run one-way ANOVA summary statistics for multiple groups.
Bar Chart Generator
Create bar charts from labeled values and compare categories at a glance.
Bayes Theorem Calculator
Compute posterior probability from prior, sensitivity, and false positive rate.
Bubble Chart Generator
Create bubble charts from x, y, and size values.
Chi-Square GOF Calculator
Calculate chi-square goodness-of-fit statistic from observed vs expected counts.
Common workflow
- Start with clean labels, values, sample sizes, and units.
- Choose the statistical test, chart type, or data utility that matches the question.
- Interpret the result with sample quality, assumptions, and outliers in view.
Related collections
Full Data & Statistics tool list
CSV Cleaner
Clean rows, normalize columns, and remove duplicates quickly.
ANOVA One Way Calculator
Run one-way ANOVA summary statistics for multiple groups.
Bar Chart Generator
Create bar charts from labeled values and compare categories at a glance.
Bayes Theorem Calculator
Compute posterior probability from prior, sensitivity, and false positive rate.
Bubble Chart Generator
Create bubble charts from x, y, and size values.
Chi-Square GOF Calculator
Calculate chi-square goodness-of-fit statistic from observed vs expected counts.
Confidence Interval Calculator
Estimate confidence intervals from mean, standard deviation, and sample size.
Confidence Level Z Value Tool
Convert confidence levels to z critical values and margin of error.
Donut Chart Generator
Create donut charts from labeled values with configurable center hole.
F Test Variance Calculator
Compare sample variances with F statistic and degrees of freedom.
Funnel Chart Generator
Create funnel charts from stage values and inspect conversion drop-off.
Gantt Chart Generator
Create project timeline visualizations.
Geometric Mean Calculator
Find geometric mean for positive-number datasets.
Harmonic Mean Calculator
Calculate harmonic mean for rates and ratios.
Heatmap Generator
Create heatmaps from row-column-value data matrices.
Histogram Generator
Create histograms from numeric samples to view distribution across bins.
Line Chart Generator
Create line charts from labeled values to visualize change over time.
Moving Average Calculator
Compute rolling averages over a configurable window.
Normal Probability Calculator
Compute probability between two bounds in a normal distribution.
One-Sample t-Test Calculator
Compute one-sample t-statistic from sample values and hypothesized mean.
Pareto Chart Generator
Create Pareto charts with sorted categories and cumulative percentages.
Pearson Correlation Calculator
Calculate Pearson r and R² from paired X and Y datasets.
Percentile Rank Calculator
Find percentile rank of a target value within a dataset.
Pie Chart Generator
Create pie charts from labeled values and visualize proportional shares.
Poisson Probability Calculator
Calculate exact and cumulative Poisson event probabilities.
Radar Chart Generator
Create radar charts from metric-value pairs across a shared scale.
Relative Risk Odds Ratio Calculator
Compute RR, OR, and confidence intervals from a 2x2 contingency table.
Sample Size Calculator
Estimate required sample size from confidence level, margin error, and proportion.
Sankey Diagram Generator
Visualize flow data with Sankey diagrams.
Scatter Plot Generator
Create scatter plots from x,y points to inspect relationships.
Stacked Bar Chart Generator
Create stacked bar charts from grouped segment values.
Tree Map Generator
Visualize hierarchical data with tree maps.
Waterfall Chart Generator
Create waterfall charts from positive and negative step changes.
FAQ
What are Data & Statistics tools useful for?
They handle focused data & statistics tasks where a single-purpose page is faster than a spreadsheet or full application.
How many tools are in this collection?
This category currently includes 33 focused tools, with the most practical starting points shown first.