DevTools tools

Conversion and reference tools for developers — number bases, identifiers, encodings — computed locally with no logging. Precise where it counts: the base converter uses arbitrary-precision integers so a full 64-bit value stays exact past the point where a naive JavaScript tool loses precision. Small tools, done correctly.

• ASCII Table ReferenceLook up any character’s ASCII code in every base.
• Number Base ConverterConvert a number between binary, octal, decimal and hex — exactly, at any size.
• Roman Numeral ConverterConvert between numbers and Roman numerals, both directions.