Benford’s-law tests on your own spreadsheet

The digit tests auditors use: first digit, second digit, first two and last two, each scored with the mean absolute deviation against Nigrini’s published ranges, plus Z-scores per digit, the summation test and the number-duplication test. Tap any digit to see its rows and export them.

Your file is not uploaded. It is read and tested inside this browser tab and is gone when you close it. The page sends one anonymous counter per action (load, analyse, export) with no data, no file name and no amounts.