Last reviewed 16 July 2026
Clear methods, not black-box answers.
Every UtilHub tool is built around a visible formula, browser standard or documented transformation. The interface should make assumptions editable and show enough intermediate results for you to sense-check the answer.
Numbers and rounding
Calculations use full JavaScript numeric precision internally and round mainly for display. Financial institutions, invoices and payroll systems may round per line or period, so small differences can occur.
Date calculations
Date-only tools normalise dates before counting so daylight-saving clock changes do not accidentally add or remove a day. Working-day tools state which weekends they exclude and do not silently assume public holidays.
Security and randomness
Password and secure random tools require the browser Web Crypto API. UtilHub does not fall back to predictable pseudo-random values for security-labelled output.
Rates, law and personal decisions
Tax, finance, health and employment outputs are general estimates. Rates can change and individual circumstances matter. UtilHub exposes key rates for editing and does not replace qualified advice.
Quality checks
Known examples, zero values, invalid inputs, unusual dates and mobile layouts are checked before a tool is listed. If a result matters, independently verify the inputs and method.