Free Online Tools & Calculators

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🧮
Basic Calculator
Quick calculations with history
📏
Unit Converter
Length, weight, temperature & more
📊
Percentage Calculator
Discounts, increases, ratios
🧬
BMI Calculator
Body mass index calculator
📅
Age Calculator
Calculate exact age in years, months, days
🔐
Password Generator
Create strong, secure passwords
📝
Lorem Ipsum Generator
Generate placeholder text for designs
🎨
Color Converter
HEX, RGB, HSL conversion
⏱️
Online Timer
Countdown timer with alarm
⏲️
Stopwatch
Track time with lap function
📱
QR Code Generator
Create QR codes for URLs & text
🔑
Hash Generator
MD5, SHA-1, SHA-256 hashes
🔄
Base64 Encoder
Encode & decode Base64 text
{ }
JSON Formatter
Pretty print & validate JSON
🔀
Text Diff Checker
Compare two blocks of text
Aa
Case Converter
UPPER, lower, Title, camelCase