Calculate simple interest using Principal × Rate × Time formula

Compute compound interest and investment returns over time

Calculate EMI from principal amount, interest rate, and tenure

Find percentage, percentage increase, or percentage decrease

Apply discount percentage to original price and find final amount

Calculate tips and split bills with custom tip percentages

Divide expenses and bills among multiple people equally

Calculate Body Mass Index from height and weight measurements

Find your ideal healthy weight range based on height and age

Estimate body fat percentage from body measurements

Calculate Basal Metabolic Rate - calories burned at rest

Estimate daily calorie requirements with activity factor

Calculate running pace from time and distance

Calculate your exact age in years, months, days, hours, and minutes from birthdate

Find your exact age in seconds, minutes, hours, days, weeks, and months

Check if any year is a leap year and find upcoming leap years

Find what day of the week any date falls on, past or future

Convert Unix timestamps to human-readable dates and vice versa

Convert between seconds, minutes, hours, days, weeks, months, and years

Find your astrological zodiac sign from your birth date

Discover your Chinese zodiac animal and element from birth year

Calculate approximate sunrise and sunset times for any location and date

Convert between meters, feet, inches, centimeters, kilometers, and more

Convert between kilograms, pounds, ounces, grams, and other weight units

Convert between Celsius, Fahrenheit, and Kelvin temperature scales

Convert between square meters, acres, hectares, square feet, and more

Convert between liters, gallons, cups, milliliters, and other volume units

Convert between mph, km/h, m/s, knots, and other speed units

Convert between major world currencies with current exchange rates

Convert numbers between binary, decimal, hexadecimal, and octal bases

Convert colors between HEX, RGB, HSL, and other color formats

Convert between bytes, KB, MB, GB, TB, and other file size units

Convert between decimal numbers and Roman numerals

Convert characters to Unicode code points and vice versa

Count words, characters, paragraphs, and reading time in your text

Convert text between uppercase, lowercase, title case, and more

Encode and decode URLs for safe transmission and storage

Encode and decode text using Base64 encoding

Encode and decode HTML entities and special characters

Format, validate, and beautify JSON data with syntax highlighting

Beautify and format XML strings with proper indentation

Convert between YAML and JSON formats bidirectionally

Calculate word usage frequency and statistics in text

Convert text to URL-friendly slugs for web development

Compare two text strings and highlight differences

Render Markdown text to HTML with live preview

Generate secure passwords with customizable length and character sets

Generate MD5, SHA-1, SHA-256, and other hash values for text

Generate placeholder text for design and development projects

Convert written text to spoken audio using your browser

Convert between px, em, rem, and other CSS units

Compress or format CSS code for optimization or readability

Compress or format JavaScript code for optimization or readability

Sandbox for live HTML, CSS, and JavaScript code editing

Convert images to base64 encoded strings for embedding

Decode base64 strings back to viewable images

Create and visualize SVG path elements interactively

Display plain text content of uploaded files

Generate QR codes from text or URLs and download the image

Create Code-128 barcodes from text with adjustable height

Validate password robustness and security strength

Generate secure random passwords with customizable options

Generate MD5, SHA-1, SHA-256, and other hash values

Encode and decode text using ROT-13 and Caesar cipher methods

Simple text encryption and decryption using basic algorithms

Validate credit card numbers using the Luhn algorithm

Convert text to Morse code and vice versa

Play Morse code as audio tones and beeps

Browse and copy emojis with search and categories

Convert colors between HEX, RGB, HSL, and other formats

Create beautiful CSS gradients with live preview

Generate harmonious color palettes and schemes

Calculate love compatibility between two names with fun results

Solve quadratic equations and find roots using the quadratic formula

Calculate area, perimeter, and volume for various geometric shapes

Calculate factorial of numbers with step-by-step explanation

Generate Fibonacci sequence and calculate Fibonacci numbers

Check if numbers are prime and generate lists of prime numbers

Calculate Greatest Common Divisor and Least Common Multiple

Calculate mean, median, mode, standard deviation, and other statistics