Health
Calculate ideal body weight based on height, gender, and formula
ideal-weight-calculatorGames
Generate random mazes with customizable size and difficulty
maze-generatorHealth
Calculate optimal wake-up and bedtimes based on 90-minute sleep cycles
sleep-cycle-calculatorHealth
Calculate Total Daily Energy Expenditure (TDEE) - total calories burned per day
tdee-calculatorGames
Generate customizable word search puzzles with hidden words
word-search-generatorDate & Time
Check if date ranges overlap with each other
date-overlap-checkerDate & Time
Validate if dates are within a specified range
date-range-validatorDate & Time
Calculate holidays for a specific year and country
holiday-calculatorDate & Time
Generate recurring dates based on a pattern
recurring-event-generatorDate & Time
Convert dates to and from RFC 2822 format
rfc-2822-converterDate & Time
Add or subtract time from a date
time-adder-subtractorDate & Time
Format time duration into various human-readable formats
time-duration-formatter