Format Conversion
Convert text to and from binary bit strings using ASCII (7-bit) or UTF-8 (8-bit) encoding
text-to-binaryFormat Conversion
Escape and unescape XML special characters (& < > " ') with optional numeric references, slash escaping, and CDATA wrapping
xml-escapeMath & Numbers
Convert therms to kilowatt-hours with configurable decimal precision
therm-to-kwhMath & Numbers
Convert whole calendar years to exact days from a specified start year
years-to-daysMath & Numbers
Convert yards to inches with configurable decimal precision
yard-to-inchesMath & Numbers
Convert yards to feet with configurable decimal precision
yard-to-feetMath & Numbers
Convert yards to meters with configurable decimal precision
yard-to-meterMath & Numbers
Run one-sample Z tests for a mean with known population standard deviation or a single population proportion
z-test-calculatorMath & Numbers
Calculate a z-score from a raw value using a dataset or manually entered mean and standard deviation
z-score-calculatorMath & Numbers
Convert a z-score into normal-distribution percentile, tail probability, or central area
z-score-to-percentile-calculatorFormat Conversion
Inject Excel sparklines into worksheet cells by patching XLSX sheet XML with sparkline definitions
xlsx-sparkline-injectorFormat Conversion
Create or update workbook-level named ranges so formulas, validations, and reusable templates can reference stable Excel names
xlsx-named-range-injector