Find the right tool
for the job.

Compare source and destination headers, auto-match normalized columns, and surface missing or extra fields before an import.

Generate a random password with configurable length, character sets, and ambiguous-character filtering.

Generate one or many UUID v4 values in-browser and copy individual IDs or the whole batch.

Turn a title or phrase into a lowercase, hyphenated slug that is ready for URLs or route names.

Convert text into sentence case, title case, camelCase, snake_case, kebab-case, and CONSTANT_CASE.

Validate JSON, then view copyable pretty-printed and minified output without switching to another editor.

Encode plain text into Base64 or decode Base64 back into readable text with inline error handling.

Encode or decode URL-safe text using standard percent-encoding so query strings and shared links stay valid.

Estimate maintenance calories, a practical cutting target, and a protein goal based on your body stats and activity level.

Calculate body mass index from height and weight, then compare it against a standard healthy weight range.

Convert a run or walk finish time into pace per mile or kilometer, plus speed in your chosen distance unit.

Calculate exact age from a birth date, days lived so far, and the date of the next birthday.

Measure the distance between two dates in days, weeks, and a calendar-style year-month-day span.

Convert one date and time across a fixed set of major world time zones, including all core US zones and common international hubs.

Run a local focus timer with configurable focus, short break, and long break lengths plus simple start, pause, and reset controls.