Search Tools
Browse all 118 tools:
Length Converter
Convert between metric and imperial length units like meters, feet, miles and kilometers.
Weight Converter
Convert mass between grams, kilograms, pounds, ounces and tonnes.
Temperature Converter
Convert temperatures between Celsius, Fahrenheit and Kelvin.
Speed Converter
Convert speed between m/s, km/h, mph, knots and feet per second.
Area Converter
Convert area between square meters, square feet, acres, hectares and more.
Volume Converter
Convert volume between liters, gallons, cups, milliliters and cubic meters.
Time Converter
Convert time between seconds, minutes, hours, days, weeks and years.
Data Storage Converter
Convert digital storage between bits, bytes, KB, MB, GB, TB and PB.
Angle Converter
Convert angles between degrees, radians, gradians and arcminutes.
Pressure Converter
Convert pressure between pascals, bar, atm, psi and mmHg.
Energy Converter
Convert energy between joules, calories, watt-hours, BTU and electronvolts.
Power Converter
Convert power between watts, kilowatts, horsepower and BTU/hour.
Fuel Economy Converter
Convert fuel economy between MPG (US/UK), L/100km and km/L.
Data Rate Converter
Convert data transfer rates between bit/s, Kbps, Mbps, Gbps and more.
Frequency Converter
Convert frequency between Hertz, Kilohertz, Megahertz and Gigahertz.
Force Converter
Convert force between Newtons, kilonewtons, pound-force and dynes.
Torque Converter
Convert torque between Newton-meter, foot-pound, inch-pound and kilogram-meter.
BMI Calculator
Calculate your Body Mass Index from height and weight in metric or imperial units.
Loan Calculator
Calculate monthly payments, total interest and total paid for a fixed-rate loan.
Percentage Calculator
Calculate what percent one number is of another, and find percentages of values.
Discount Calculator
Find the final price and savings after applying a discount percentage.
Age Calculator
Calculate exact age in years, months and days between two dates.
Tip Calculator
Calculate tip and split the bill between any number of people.
Compound Interest Calculator
Calculate compound interest and final amount with configurable compounding frequency.
GPA Calculator
Calculate your grade point average from course grades and credit hours.
Simple Calculator
A basic arithmetic calculator that evaluates expressions with +, -, *, / and parentheses.
Scientific Calculator
Evaluate scientific expressions with trig, log, sqrt, powers and constants.
Simple Interest Calculator
Calculate simple interest and total amount from principal, rate and time.
Sales Tax Calculator
Calculate sales tax and total cost from price, quantity and tax rate.
Mortgage Calculator
Calculate monthly mortgage payments from home price, down payment, rate and term.
Password Generator
Generate strong, random passwords with custom length and character sets using cryptographic randomness.
UUID Generator
Generate version 4 UUIDs (universally unique identifiers) using cryptographically secure randomness.
Lorem Ipsum Generator
Generate placeholder Lorem Ipsum paragraphs for your designs and mockups.
QR Code Generator
Create QR codes from any text or URL with adjustable size.
Random String Generator
Generate cryptographically secure random strings of any length and quantity.
Hash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text using the Web Crypto API.
Placeholder Image Generator
Generate placeholder images of any dimensions for your mockups and prototypes.
Signature Generator
Create a digital signature from your name in various handwriting fonts.
Slug Generator
Convert any text into a URL-friendly slug for use in routes and permalinks.
Barcode Generator
Generate EAN-13 barcodes from numeric data.
Invoice Generator
Create simple invoices with line items, tax and totals.
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case and more.
Word Counter
Count words, characters, sentences, paragraphs and lines in your text in real time.
Remove Extra Spaces
Remove extra spaces, tabs and line breaks from text, leaving single spaces between words.
Strip HTML Tags
Remove all HTML tags from text, leaving only the plain text content.
Reverse Text
Reverse the characters of any text, useful for puzzles and testing.
Remove Duplicate Characters
Remove consecutive duplicate characters from text, keeping only single occurrences.
Remove Duplicate Lines
Remove duplicate lines or duplicate words from a list, keeping only unique entries.
Sort Lines
Sort lines of text alphabetically or numerically, ascending or descending.
Find and Replace
Find and replace text with support for plain text and regular expressions.
Text Diff
Compare two blocks of text line by line and highlight the differences.
Text to Speech
Read text aloud using your browser's built-in speech synthesis engine.
Remove Accents
Strip diacritical marks and accents from text, converting accented characters to plain ASCII.
Invert Case
Swap the case of each letter — uppercase becomes lowercase and vice versa.
Inverted Case
Lowercase the first letter and uppercase the rest of each word.
Censor Text
Censor text by replacing all but the first letter of each word with blocks.
Text to Single Line
Convert multi-line text into a single line by removing line breaks.
Character Counter
Count the total characters in your text after normalizing whitespace.
Base64 Encode/Decode
Encode text to Base64 or decode Base64 back to text. Handles UTF-8 correctly.
URL Encode/Decode
Percent-encode and decode URLs and query parameters safely.
JWT Decoder
Decode a JSON Web Token and inspect its header, payload and signature.
JSON Formatter
Format, beautify and validate JSON with configurable indentation.
JSON Minifier
Minify JSON to remove whitespace and reduce payload size.
JSON to CSV
Convert an array of JSON objects into CSV format for spreadsheets.
Hex Converter
Convert text to hexadecimal and hex back to text.
Binary Converter
Convert text to binary and binary back to text.
HTML Encode/Decode
Convert special characters to HTML entities and back.
Regex Tester
Test regular expressions against text and see all matches instantly.
CSS Minifier
Minify CSS by removing comments and whitespace to reduce file size.
JS Minifier
Minify JavaScript by removing comments and whitespace.
User-Agent Parser
Parse a user-agent string to detect browser, OS and device type.
Double URL Encoder
Double URL-encode or decode text for special encoding scenarios.
JSON Array to Object
Convert a JSON array into an object keyed by index.
JSON to Query String
Convert a JSON object into a URL query string.
XML Formatter
Beautify and format XML with proper indentation and line breaks.
SQL Formatter
Format SQL queries with keywords on separate lines for readability.
Number Formatter
Format numbers with locale-specific grouping and decimal places.
CSV Formatter
Parse CSV data into a readable table view with custom delimiters.
Markdown Previewer
Write Markdown and see a live rendered preview side by side.
Text to Columns
Split delimited text into columns and view as a table.
Image Resizer
Resize images to any dimensions with optional aspect ratio lock. Runs entirely in your browser.
Image Converter
Convert images between PNG, JPEG and WebP formats with adjustable quality.
Image to Base64
Convert an image file to a Base64 data URL for embedding in HTML or CSS.
Image Cropper
Crop images to a centered square at any size, perfect for avatars and thumbnails.
Image Rotator
Rotate images by 90, 180 or 270 degrees right in your browser.
Color Converter
Convert colors between HEX, RGB and HSL formats with a live color preview.
Color Picker
Pick any color and get its hex value instantly.
Palette Generator
Generate a cohesive color palette from a base color across lightness levels.
Gradient Generator
Create CSS gradients with two colors and a custom angle, with copy-ready CSS.
Contrast Checker
Check WCAG color contrast ratios for accessibility compliance.
Random Color Generator
Generate random colors with hex values, click to copy.
Random Number Generator
Generate random numbers within a range, one or many at once.
Random Picker
Pick a random item from a list of options.
Coin Flip
Flip a virtual coin and track heads vs tails count.
Dice Roller
Roll any number of dice with any number of sides.
List Shuffler
Randomly shuffle the lines of a list.
Yes/No Decider
Can't decide? Let the tool answer yes or no for you.
Team Picker
Randomly split a list of names into balanced teams.
Timestamp Converter
Convert a Unix timestamp to human-readable UTC, ISO and local date formats.
Date to Timestamp
Convert any date and time to a Unix timestamp in seconds.
Date Difference Calculator
Calculate the difference between two dates in days, weeks, months and years.
Date Add/Subtract
Add or subtract days from a date to find a past or future date.
Countdown Timer
Count down to any future date and time with a live updating display.
Stopwatch
A precise stopwatch with start, pause and reset, accurate to centiseconds.
Timezone Converter
Convert a time between any two timezones around the world.
Age from Date
Calculate how old someone is from their date of birth.
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal bases.
Prime Number Checker
Check if a number is prime and find its prime factors if it is not.
GCD & LCM Calculator
Calculate the greatest common divisor and least common multiple of two numbers.
Fraction Calculator
Add, subtract, multiply and divide fractions and get simplified results.
Quadratic Equation Solver
Solve quadratic equations ax² + bx + c = 0 and find real roots.
Statistics Calculator
Calculate mean, median, mode, standard deviation, variance and more from a dataset.
Factorial Calculator
Calculate the factorial of any number up to 1000 with full precision.
Average Calculator
Calculate the arithmetic average of a list of numbers.
Roman Numeral Converter
Convert numbers to Roman numerals (I, V, X, L, C, D, M).
Multiplication Calculator
Multiply multiple numbers together and get the product.
Prime Number List
Generate a list of all prime numbers up to a given limit.
Fibonacci Sequence
Generate the Fibonacci sequence up to a given count of numbers.