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Free Everyday utilities Tools
Practical calculators, dates, measurements and generators for small everyday tasks.
Choose a task below. Each tool shows its supported input and limits before you start, with processing in your browser and a complete downloadable result.
Unix Timestamp Converter
Convert between Unix timestamps and UTC dates
Unit Converter
Convert length, mass and temperature units
HEX and RGB Converter
Convert a colour between HEX and RGB
Colour Contrast Checker
Calculate the contrast ratio of two colours
Percentage Calculator
Calculate a percentage of an amount
Percentage Change Calculator
Compare an old value with a new value
Discount Calculator
Calculate savings and a discounted price
Tip and Bill Splitter
Split a bill and tip across a group
Average and Median Calculator
Summarise a list of numbers
Fraction Simplifier
Reduce an integer fraction to simplest form
Ratio Simplifier
Simplify a ratio of positive integers
Date Difference Calculator
Count calendar days between two dates
Aspect Ratio Calculator
Reduce pixel dimensions to an aspect ratio
Looking for another task? Explore all Ali Pro tools.