Free · No install · Data stays in your browser
Paste your Excel data,
get statistical charts instantly
An online chart tool for quality, process and research data. Along with the chart, it calculates and explains mean, standard deviation, Ppk, outliers and trends automatically.
Histogram Maker
See the distribution, a fitted normal curve and Pp/Ppk against spec limits at once.
Start →Box Plot Maker
Compare medians, quartiles and outliers of several groups side by side.
Start →Scatter Plot Maker
Plot the relationship between two variables with a trendline, equation and R².
Start →Line Chart Maker
Compare changes and trends over time or order across several series.
Start →Bar Chart Maker
Compare values by category with vertical, horizontal, grouped or stacked bars.
Start →Why Open Qstat?
- One paste Tables copied from Excel or Google Sheets are recognized as they are.
- Statistics included Not just a chart - key statistics and a plain-language interpretation come with it.
- Data privacy Every calculation runs in your browser, so even company data is safe to use.
Need deeper analysis?
Process capability, control charts, measurement system analysis (MSA), design of experiments (DOE), machine learning and about 250 other features are available in the Qstat desktop program.
Learn about Qstat