Quick guide
- Paste CSV or TSV first when you need types, missing values, and the next chart or stats page.
- Move to quick charts once columns are clean and you want a fast visual check.
- Open descriptive stats when the next question is a one-column summary.
- Open linear regression when the next question is a two-column relationship.
Data quality check
Clean labels first. Keep one variable in one column.
Check outliers before you draw conclusions from charts.
Use the same scale when comparing two groups.
Export charts with notes so your future self can read them fast.
When sharing, include sample size and filters on the same page.
If data changes often, save one baseline chart for comparison.
Keep color and axis choices consistent across reports so trends remain easy to compare month to month.
Before presenting to stakeholders, add one plain-language caption that explains what changed, by how much, and why the change matters for decisions.
Tools
- CSV Column Profiler.
Paste CSV or TSV data to inspect column types, missing values, unique counts, and next chart or stats options.
- Quick charts from pasted data — scatter / box plot.
Paste spreadsheet data to generate scatter and box plots instantly.
- Distribution Sampler and Histogram Tool.
Generate random samples from common distributions, visualize histograms, review summary stats, and export CSV/JSON.
Calculators
- Histogram & cumulative frequency from grouped data.
Enter grouped or raw data to build a derived frequency table, histogram (frequency or frequency density).
- Descriptive Statistics + Box Plot & Histogram.
Paste a dataset or upload CSV/TSV to review descriptive statistics, histogram, box plot, outlier counts, trimmed mean.
- Linear Regression & Correlation — Scatter, OLS/WLS, R².
Paste x,y[,w] data or upload a CSV to fit OLS, WLS or Theil–Sen regression.
Related categories
- Dev & data tools: JSON, UUID, subnet/CIDR, random CSV | CalcBEOpen developer-facing data tools first when the next step is cleaning columns, generating fixtures, or preparing data for charts.
- Statistics & probability calculators | CalcBEMove here for descriptive stats, grouped-frequency work, and probability pages that explain the numbers behind a chart.
- Statistics inference calculators | hypothesis tests, confidence intervals | CalcBEUse inference pages when the chart is only the start and the next question is significance, intervals, or effect size.
- Random & Lotteries: Pickers, Dice, Probability | CalcBEOpen random tools when you need simulated samples, distribution checks, or reproducible seeded inputs for a chart.
- Date & Time Calculators: Days Between, Business Days | CalcBEUse date and time pages when the next visualization depends on schedule windows, weekday filters, or recurring intervals.