WEBTOOLMANIA
One place for useful web tools.
Your inputs stay on this device.
Popular tools
Percentage Calculator
Find a percentage of a number or calculate a percentage increase or decrease.
CalculatorsAge Calculator
Calculate completed years and total days between your birth date and a chosen date.
Date & timeDate Difference Calculator
Find the number of calendar days between two dates, including a signed result.
Date & timeFuel Cost Calculator
Estimate trip fuel cost from distance, efficiency and your price per liter.
CalculatorsUnit Converter
Convert length, mass and temperature with explicit source and target units.
ConvertersWord & Character Counter
Count words, Unicode characters, non-whitespace characters and lines in your text.
Text toolsRandom Number Generator
Generate random integers between two inclusive limits on your device.
Random & securityText Case Converter
Convert text to uppercase, lowercase, title case or sentence case.
Text toolsPassword Generator
Create a random password locally with your selected character types.
Random & securityQR Code Generator
Turn text or a link into a static QR code and download it as SVG.
Developer tools