Common
Aspect Ratio
Visualize and calculate aspect ratios for screens, images, and videos.
Basic Calculator
A simple, elegant calculator for everyday arithmetic operations.
Battery Info
View real-time status and information about your device's battery.
Regex Generator
Create regular expressions using natural language or guided form inputs.
QR Code Generator
Generate QR codes for URLs, text, contact info, Wi-Fi, and more.
Clothing Size
Convert men's and women's clothing sizes between international standards.
Cooking Measurements
Convert between kitchen units like cups, spoons, and grams.
Electricity Cost
Estimate the electricity cost of appliances based on usage and rates.
Energy Analyzer
Analyze your household energy consumption with a visual breakdown.
Fuel Cost Calculator
Calculate the fuel cost for a trip based on distance, efficiency, and price.
Hat Size Converter
Find your hat size based on US/UK standards and head measurements.
Image Compressor
Compress JPEG images on-device with adjustable quality and live preview.
Ring Size Converter
Convert ring sizes between international standards with mm measurements.
On-Screen Ruler
A simple on-screen ruler for measuring pixels and other elements.
Shoe Size Converter
Convert men's and women's shoe sizes between US, UK, and EU standards.
Wire Gauge Chart
A reference for AWG wire sizes with metric and imperial equivalents.
Conversion Tools
Currency Converter
Convert between global currencies with real-time exchange rates.
Epoch Time Converter
Convert between Unix timestamps and human-readable dates.
CSV to JSON Converter
Convert CSV data into structured JSON format for APIs and applications.
Slugify Tool
Convert titles or phrases into URL-friendly slugs by replacing spaces with hyphens and lowercasing text.
Language Translator
Translate text between multiple languages using smart AI-powered translation.
Image to Base64
Convert the Image to base64 and vice versa.
Unit Converter
A comprehensive tool to convert between various units of measurement.
URL Parser
Parse and analyze URLs to extract protocol, domain, and parameters.
Health
BMI Calculator
Calculate your Body Mass Index (BMI) to assess your weight status.
Water Intake Calculator
Estimate your daily water needs based on your weight, activity level, and lifestyle.
Heart Rate Calculator
Calculate target heart rate zones for exercise and fitness training.
Pedometer (Step Counter)
A simple step counter using your device's motion sensors.
Math Tools
Binary System
A four-way converter for Decimal, Binary, Hex, and Octal numbers.
Stats Toolkit
Calculate mean, median, mode, standard deviation, Z-score, and visualize with a box plot — all in one place.
Car Loan Calculator
Calculate monthly payments and total cost for a car loan.
Combination Calculator
Calculate combinations (nCr) from a set of items where order doesn't matter.
Simple Counter
A simple and elegant tally counter for any purpose.
Cubic Solver
Find the roots of cubic equations with real and complex solutions.
Linear Equation Solver
Solve systems of linear equations using various mathematical methods.
Math Evaluator
Evaluate complex mathematical expressions with support for functions.
Matrix Calculator
Perform matrix operations like multiplication, inversion, and determinants.
Number Properties
Explore numbers in Roman, Japanese, and check properties like prime.
Permutation Calculator
Calculate permutations (nPr) from a set of items where order matters.
Quadratic Equation
Solve quadratic equations (ax² + bx + c = 0) for their roots.
Random Number Generator
Generate random numbers with customizable ranges and options.
Square Feet Calculator
Calculate the area of a space in square feet from dimensions.
Truth Table Generator
Generate truth tables for logical expressions and boolean algebra.
Sine & Cosine Visualizer
Interactively explore sine and cosine functions by adjusting the angle and visualizing the wave patterns.
Search & Translate
Binary Search Visualizer
Visualize the binary search algorithm with step-by-step execution.
Morse Code Translator
Translate text to Morse code and vice versa with audio playback.
Sound Frequency Visualizer
Visualize audio frequencies and waveforms in real-time.
Text Search Visualizer
Visualize how string pattern matching algorithms like KMP work by showing each step of the search process.
Text Tools
Anagram Finder
Find all possible anagrams of any word or phrase.
ASCII Art Generator
Convert text into ASCII art with multiple font styles.
Base Converter (Text)
Convert numbers between binary, octal, decimal, and hexadecimal bases.
Caesar Cipher
Encode and decode text using the classic Caesar cipher.
Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes for text.
Markdown Preview
Write Markdown and see a live HTML preview side-by-side.
Text Analyzer
Analyze text for word count, readability, and other statistics.
Text Encoding Playground
Encode and decode text using Base64, URL encoding, and more.
Time and Date
Age Calculator
Calculate age in years, months, and days from a birth date.
Global Calendar
Explore a global calendar with international holidays and events.
Date Calculator
Calculate the duration between two dates or add/subtract time.
Stopwatch
A simple and precise stopwatch for timing events.
Time Zone Converter
Convert times between different time zones around the world.
World Time Clock
View the current time in major cities across the globe.
Time Illusion Visualizer
Explore how the human brain perceives time with optical illusions, visual countdowns, and interactive experiments.
Leap Year Visualizer
Find out if a year is a leap year and visualize leap years over a custom range, with logic explained step-by-step.
Validators
Multi Validator
A powerful suite of input validators including password strength, email, phone number, credit card, regex, JSON, and more. Built for both developers and general users.
Color Validator
Validate and convert between color formats like HEX, RGB, and HSL.
Email Validator
Check if an email address is formatted correctly.
Emoji-Only Validator
Checks if an input string contains only emojis and whitespace.
Haiku Validator
Checks if a poem follows the 5-7-5 syllable structure of a haiku.
Profanity Validator
Detects offensive words in text using customizable filters.
Sarcasm Pattern Validator
Detects alternating "sPoNgEbOb" case patterns in text.
Strong Word Validator
Flags text for long, complex, or uncommon words.