All Tools
Browse every calculator and utility by category.
Calculators
Loan Calculator
Monthly payment, total interest
Percentage Calculator
Ratios, increase/decrease
Tip Calculator
Tip amount, total, per person
Discount Calculator
Final price & amount saved
Scientific Calculator
Trig, log, sqrt, powers and more
Compound Interest Calculator
Final balance, total interest, contributions
Average Calculator
Mean, median, min, max, sum from a list of numbers
Sales Tax Calculator
Tax amount, total price, and reverse (total to net)
Health
Converters
Unit Converter
Length, weight, temperature
Data Storage Converter
Convert between Bit, Byte, KB, MB, GB, TB, PB
Time Converter
Convert between ms, s, min, h, day, week, month, year
Temperature Converter
Celsius, Fahrenheit and Kelvin — live conversion
Date & Time
Developer
Password Generator
Random secure passwords, strength check
Base64 Encoder/Decoder
Encode or decode Base64 text instantly
Color Converter
HEX to RGB and HSL with color preview
Number Base Converter
Convert between binary, octal, decimal, hex
Aspect Ratio Calculator
Find missing width or height while keeping the aspect ratio
Hash Generator
SHA-1, SHA-256, SHA-384, SHA-512 from any text
UUID Generator
Generate v4 UUIDs one at a time or in bulk
Unix Timestamp Converter
Timestamp to date/time and back, UTC and local
JSON Formatter
Beautify, minify and validate JSON in one click
URL Encoder / Decoder
Encode or decode URL components instantly
Office
Case Converter
UPPER, lower, Title, Sentence case
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences or words
Word Counter
Words, characters, sentences, paragraphs, reading time
Character Counter
Characters, words, lines and UTF-8 bytes
Fancy Text Generator
Decorative fonts, text emoticons, symbols and ASCII art
QR Code Generator
Text or URL to a QR code, download as PNG
Text to Speech
Read any text aloud with adjustable voice, speed, pitch
Study
Brain & Games
Random Number Generator
Generate random integers with min, max, count, unique
Dice Roller
Roll d4/d6/d8/d10/d12/d20/d100, up to 10 dice
Coin Flip
Flip a coin, track heads vs tails tally
Spin the Wheel
Spin a wheel to pick a random name or item
Reaction Time Test
Measure your click reaction speed in milliseconds
Fortune Cookie Generator
Crack open a cookie for a random saying
Language
Morse Code Translator
Translate text to Morse code and back
Roman Numeral Converter
Convert between Arabic numbers and Roman numerals
NATO Phonetic Alphabet
Spell any text using NATO phonetic words