Is this tool private?

Yes. All processing happens locally in your browser. No data is uploaded.

What extras does this tool have?

Extras: (1) Core function, (2) Batch mode, (3) Copy results, (4) Download, (5) History, (6) CSV export, (7) Custom options, (8) Validation, (9) Warnings, (10) Stats, (11) Multi-format, (12) Configurable, (13) Preview.

Calculators Runs in your browser

Standard Deviation Calculator

Calculate mean, median, mode, std dev, variance, and range from data set. 100% private. 100% private.

100% Private Works Offline Instant

Values (comma / space / newline separated)

Z-score threshold

IQR multiplier

Visual box plot (five-number summary)

Compute stats to see the box plot.

Privacy: all statistics computed locally. Nothing uploaded.

Calculate mean, median, mode, std dev, variance, and range from data set. 100% private. 100% private. Everything runs locally in your browser — your data never leaves your device.

How to use

Enter your input in the tool above.
Adjust any options to your preference.
Use the Copy or Download buttons to save the result.
Everything happens locally — your data never leaves your browser.

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