Everything a quality engineer reaches for daily
Built around Minitab-faithful workflows — not a generalist stats grab-bag.
Open SpcLiteData management
Multi-worksheet projects, numeric/text/date columns, CSV/TSV/Excel import, clipboard paste, sort/stack/transpose/subset, and .spclite project files for backup.
Graphs
Histogram, boxplot, scatter, bar, pie, time series, Pareto, probability plot, individual value, and interval plots — export to PNG.
Basic stats & tests
Descriptive statistics, normality (AD / Shapiro-Wilk / Ryan-Joiner / K-S), correlation, covariance, Grubbs outliers, parametric and nonparametric hypothesis tests.
ANOVA & regression
One- and two-way ANOVA with multiple comparisons, linear regression with diagnostics, and binary logistic regression.
SPC & capability
I-MR, Xbar-R/S, p/np/c/u, Western Electric rules, run charts, stage labels, plus normal/Box-Cox/binomial/Poisson capability.
Explore SPC →Measurement systems analysis
Gage R&R (crossed/nested), Type 1 study, attribute agreement, linearity and bias.
Explore MSA →Design of experiments
Full and fractional factorials, Plackett-Burman, Box-Behnken, CCD — create designs in the worksheet and analyze effects.
Explore DOE →Power, advisor & offline
Power and sample size, method advisor, example datasets, English/Chinese UI, IndexedDB autosave, and PWA offline install.
Why local-first →