Utilities
Free Online Utilities
Use practical browser tools and interactive study references—free, directly in your browser.
Interactive
Interactive Analog Clock
A customizable glass clock with alarms, time zones, numeral styles, and display controls.
Open Interactive Analog Clock → Work UtilityDate & Time Calculator
Calculate elapsed days, hours, minutes, and optional seconds between two timestamps.
Open Date & Time Calculator → Study UtilityLaw Enforcement Study
Study local 10-codes and the law-enforcement phonetic alphabet with flip cards and a memory-matching quiz.
Open Law Enforcement Study → Character ReferenceUnicode Atlas
Find symbols, letters, emoji, and other Unicode characters, inspect their code points and encodings, and copy them.
Open Unicode Atlas → Learning ReferenceInfinite Number Names
Explore place-value names from ones onward, inspect exact digits, and learn how large-number names are formed.
Open Infinite Number Names → Alternate InterfaceConsole Interface
Navigate the site through the ELH command console, virtual directories, apps, aliases, and batch files.
Launch Console Interface →