Conversion

Conversion online tools, 12 in total: Case Converter, Unix Timestamp Converter, Number Base Converter, Roman Numerals Converter, Unit Converter, UUID Generator, Cron Expression Generator & Scheduler, Color Converter – HEX, RGB & HSL, Number to Words – Convert Numbers into English Words, Credit Card Number Validator & Checker – Free Online, Naming Convention Converter, Timezone Converter. Everything runs in your browser — no uploads or sign-up.

All tools
Case ConverterLocalConvert text to uppercase, lowercase, title case, or sentence case.
Unix Timestamp ConverterLocalConvert a Unix timestamp to a readable date, or a date to a Unix timestamp.
Number Base ConverterLocalConvert integers between any bases from 2 to 36.
Roman Numerals ConverterLocalConvert between Roman numerals and numbers from 1 to 3999.
Unit ConverterLocalConvert length, weight, temperature, and data-size units.
UUID GeneratorLocalGenerate v4 UUIDs in your browser, in bulk — no uploads.
Cron Expression Generator & SchedulerLocalTurn cron expressions into plain English, preview the next run times, and build a cron job visually.
Color Converter – HEX, RGB & HSLLocalConvert between HEX, RGB and HSL and preview the color instantly, entirely in your browser.
Number to Words – Convert Numbers into English WordsLocalType a number and read it out as English words instantly, entirely in your browser.
Credit Card Number Validator & Checker – Free OnlineLocalValidate a credit card number with the Luhn algorithm and detect its brand, entirely in your browser.
Naming Convention ConverterLocalConvert identifiers between camelCase, PascalCase, snake_case, kebab-case and more.
Timezone ConverterLocalSee one moment in several timezones at once, with UTC offsets and working-hours hints.