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Build Your Personal Space with
2on
2on is more than just tools and calculators. Soon you'll be able to create personal dashboards, track finances, monitor creators, save quick links, and manage notes in one place.
Most Commonly Used Calculators
Salary Raise Calculator
Free salary raise calculator: enter your current pay and the raise percentage to see your new salary, the increase amount and the yearly difference.
Day of the Week Calculator
Free day of the week calculator: find out which weekday any date falls on - past or future - handy for birthdays, events and historical dates.
Age Calculator
Free age calculator: enter your birth date to see your exact age in years, months, days, hours and minutes, plus the countdown to your next birthday.
Date Difference Calculator
Free date difference calculator: find the exact time between two dates in years, months, days and weeks, and see how many working days fall in between.
Most Commonly Used Tools
MD5 Hash Generator
Free MD5 hash generator: turn any text or file into an MD5 checksum in your browser - useful for integrity checks and quick fingerprinting.
Keyword Density Checker
Free keyword density checker: paste text or a URL to see how often each word and phrase appears, with percentages for one, two and three-word terms.
Base64 Encoder & Decoder
Free Base64 encoder and decoder: convert text or files to Base64 and back, entirely in your browser - nothing is uploaded to a server.
SHA1 Generator
Free SHA-1 hash generator: turn any text into a SHA-1 digest instantly, with uppercase or lowercase output and one-click copy - no upload needed.