500+ Free Online Tools
Calculators, converters, formatters, and generators — all free, no signup required
Text Tools
42Word Counter
Count words, characters, sentences, and paragraphs in any text.
Case Converter
Convert text between uppercase, lowercase, title case, sentence case, and more.
Lorem Ipsum Generator
Generate placeholder text for designs, mockups, and layouts.
Text Diff Checker
Compare two texts side-by-side and see the differences highlighted.
Slugify
Convert text to URL-friendly slugs for web addresses and file names.
Text Reverser
Reverse any text, words, or sentences instantly.
Line Sorter
Sort lines alphabetically, numerically, or randomly.
Duplicate Line Remover
Remove duplicate lines from text and keep only unique entries.
Word Frequency Counter
Analyze text and see how often each word appears.
Whitespace Remover
Remove extra whitespace, tabs, and blank lines from text.
Add Line Numbers
Add line numbers to any text with customizable formatting.
Text Repeater
Repeat any text a specified number of times.
Fancy Text Generator
Convert text to fancy Unicode styles like bold, italic, script, and more.
Text to Binary
Convert text to binary code and binary back to text.
String Length Calculator
Calculate the byte length of strings in various encodings.
Text to HTML
Convert plain text to HTML with proper paragraph tags and line breaks.
HTML to Text
Strip HTML tags and convert HTML content to clean plain text.
Email Extractor
Extract all email addresses from any text or HTML content.
URL Extractor
Extract all URLs and links from any text or HTML content.
Find and Replace
Find and replace text with support for regular expressions and case sensitivity.
Text to Columns
Split text into columns using custom delimiters like commas, tabs, or pipes.
Prefix & Suffix Adder
Add custom prefix and suffix text to every line in your content.
Text Truncator
Truncate text to a specific number of characters or words with ellipsis.
SSML Generator
Generate SSML markup for text-to-speech applications.
Invisible Character Detector
Detect and remove invisible Unicode characters, zero-width spaces, and hidden formatting.
Text to Morse Code
Convert any text into Morse code dots and dashes instantly.
Text to ASCII Art
Convert text into large ASCII art banners using classic font styles.
Zalgo Text Generator
Generate glitchy, creepy Zalgo text with stacked combining Unicode characters.
Upside Down Text
Flip your text upside down using Unicode lookalike characters.
Strikethrough Text Generator
Add Unicode strikethrough formatting to any text for use anywhere.
Subscript & Superscript Text
Convert text to Unicode subscript or superscript characters.
Vowel Remover
Strip all vowels from text to create consonant-only shorthand.
Consonant Counter
Count consonants, vowels, and letter frequency in any text.
Sentence Shuffler
Randomly shuffle the sentences in any paragraph or text block.
Pig Latin Converter
Convert English text to Pig Latin following standard rules.
Acronym Generator
Generate an acronym from any phrase by extracting initial letters.
Tab to Spaces Converter
Convert tab characters to spaces with configurable tab width.
Spaces to Tabs Converter
Convert leading spaces to tab characters with configurable tab width.
Text to JSON String
Escape any text as a valid JSON string value with proper encoding.
Remove HTML Comments
Strip all HTML comments from code quickly and cleanly.
Morse Code Decoder
Decode Morse code to text and encode text to Morse code.
Reading Level Analyzer
Analyze text reading level using Flesch-Kincaid and other readability scores.
Developer Tools
62JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting.
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 strings back to plain text.
URL Encoder/Decoder
Encode or decode URL components for safe use in web addresses.
HTML Entity Encoder/Decoder
Encode special characters to HTML entities or decode them back.
Regex Tester
Test regular expressions with real-time matching and group highlighting.
CSS Minifier
Minify CSS code by removing whitespace, comments, and unnecessary characters.
JavaScript Minifier
Minify JavaScript code to reduce file size.
HTML Prettifier
Format and indent HTML code for better readability.
SQL Formatter
Format and beautify SQL queries with proper indentation.
Markdown Preview
Write Markdown and see the rendered preview in real-time.
Cron Expression Parser
Parse and explain cron expressions in human-readable format.
JWT Decoder
Decode and inspect JSON Web Tokens without verification.
CSS Gradient Generator
Create beautiful CSS gradients with a visual editor.
Box Shadow Generator
Design CSS box shadows with a visual editor and get the code.
Meta Tag Generator
Generate HTML meta tags for SEO, social sharing, and more.
Chmod Calculator
Calculate Unix file permissions in numeric and symbolic notation.
CSV to JSON
Convert CSV data to JSON format and vice versa.
XML to JSON
Convert XML data to JSON format.
YAML to JSON
Convert between YAML and JSON formats.
User Agent Parser
Parse and analyze browser user agent strings.
HTML Minifier
Minify HTML code by removing whitespace, comments, and redundant attributes.
JSON to CSV
Convert JSON arrays to CSV format for spreadsheets and data analysis.
JSON to XML
Convert JSON data to XML format with customizable options.
JSON to YAML
Convert JSON data to YAML format for configuration files.
CSS Formatter
Format and beautify minified CSS code with proper indentation.
JavaScript Formatter
Format and beautify minified JavaScript code.
JSON Validator
Validate JSON syntax with detailed error messages and line numbers.
Code Diff Checker
Compare two code files side-by-side with syntax-aware highlighting.
Color Picker
Pick colors from a visual palette and get HEX, RGB, and HSL values.
URL Parser
Parse URLs into their component parts: protocol, host, path, query, and fragment.
Markdown Table Generator
Create markdown tables with a visual editor and copy the code.
SVG Optimizer
Optimize SVG files by removing unnecessary metadata and simplifying paths.
TypeScript to JSON Schema
Convert TypeScript interfaces to JSON Schema definitions.
API Request Tester
Send HTTP requests and inspect responses. Supports GET, POST, PUT, DELETE.
Programmer's Calculator
Convert between binary, octal, decimal, and hexadecimal with bitwise operations.
XML Formatter
Format, prettify, and minify XML code with syntax validation.
TOML to JSON Converter
Convert TOML configuration files to JSON format.
JSONPath Tester
Test JSONPath expressions against JSON data and see results instantly.
GraphQL Formatter
Format and prettify GraphQL queries, mutations, and schema definitions.
Dockerfile Generator
Generate Dockerfiles for Node.js, Python, Go, Java, and Nginx.
.gitignore Generator
Generate .gitignore files for common languages and frameworks.
Nginx Config Generator
Generate Nginx server block configurations with SSL and proxy settings.
IP Subnet Calculator
Calculate network address, broadcast, hosts, and subnet mask from CIDR notation.
ASCII Art Generator
Convert text to ASCII art in banner and block styles.
Code Lorem Ipsum Generator
Generate placeholder code snippets in JSON, SQL, HTML, JS, TypeScript, and CSS.
Hash Identifier
Identify the type of a hash string from its pattern and length.
JWT Generator
Generate JSON Web Tokens with custom headers and payload claims.
cURL to Code Converter
Convert cURL commands to JavaScript Fetch or Python Requests code.
CSS Animation Generator
Create CSS keyframe animations with timing, duration, and preset controls.
Border Radius Generator
Visually edit CSS border-radius values with a live preview.
CSS Flexbox Generator
Visual CSS flexbox playground with live preview and code output.
CSS Grid Generator
Visual CSS Grid layout builder with live preview and code output.
Text to Handlebars Template
Convert plain text to Handlebars template variables.
JSON Diff
Compare two JSON objects and highlight added, removed, and changed keys.
.env File Generator
Generate .env file templates for Node.js, databases, JWT, Redis, email, and AWS.
CORS Tester
Test CORS headers on any URL and see what the server returns.
HTTP Status Code Reference
Look up HTTP status codes with descriptions, categories, and use cases.
MIME Type Lookup
Look up MIME types by file extension for web and API development.
Escape / Unescape Tool
Escape and unescape strings for URL, HTML, JSON, Base64, and RegEx.
Timestamp Generator
Generate timestamps in Unix, ISO 8601, UTC, and other formats.
Binary to Text Converter
Convert binary code to readable text and text to binary.
Pixel Density Calculator (PPI)
Calculate pixels per inch (PPI) from screen resolution and size.
Math Tools
33Percentage Calculator
Calculate percentages, percentage change, and percentage differences.
Scientific Calculator
A full-featured scientific calculator with advanced math functions.
BMI Calculator
Calculate your Body Mass Index and see your health category.
Age Calculator
Calculate exact age in years, months, and days from a birthdate.
Loan Calculator
Calculate monthly payments, total interest, and amortization schedules.
Compound Interest Calculator
Calculate compound interest with customizable rates and periods.
Tip Calculator
Calculate tips and split bills between multiple people.
Discount Calculator
Calculate sale prices, discount amounts, and savings.
Average Calculator
Calculate mean, median, mode, and range of a set of numbers.
Roman Numeral Converter
Convert between Roman numerals and decimal numbers.
Random Number Generator
Generate random numbers within a custom range.
GPA Calculator
Calculate your Grade Point Average from your course grades.
Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step solutions.
Standard Deviation Calculator
Calculate standard deviation, variance, and other statistical measures.
Matrix Calculator
Perform matrix operations: addition, multiplication, determinant, inverse, and transpose.
Quadratic Equation Solver
Solve quadratic equations and show the discriminant, roots, and vertex.
Prime Number Checker
Check if a number is prime and find prime factors.
GCD & LCM Calculator
Calculate the Greatest Common Divisor and Least Common Multiple of numbers.
Number to Words
Convert numbers to their written word form in English.
Ratio Calculator
Solve ratio and proportion problems with missing values.
Area Calculator
Calculate the area of common 2D shapes including rectangles, circles, triangles, and more.
Volume Calculator
Calculate the volume of common 3D shapes including cubes, spheres, and cylinders.
Pythagorean Theorem Calculator
Solve for any side of a right triangle using the Pythagorean theorem.
Permutation Calculator
Calculate the number of permutations P(n,r) for ordered arrangements.
Combination Calculator
Calculate the number of combinations C(n,r) for unordered selections.
Logarithm Calculator
Calculate logarithms with any base including natural log and log base 10.
Exponent Calculator
Calculate powers and exponents including fractional and negative exponents.
Fibonacci Sequence Generator
Generate Fibonacci sequences and find specific Fibonacci numbers.
Triangle Calculator
Solve any triangle given sides and angles using the law of sines and cosines.
Circle Calculator
Calculate circumference, area, diameter, and radius of a circle.
Probability Calculator
Calculate basic, compound, and conditional probability for events.
Modular Arithmetic Calculator
Perform modulo operations and explore modular arithmetic concepts.
Quadratic Equation Solver
Solve quadratic equations (ax² + bx + c = 0) and find roots.
Converters
78Unit Converter
Convert between units of length, weight, temperature, volume, and more.
Color Converter
Convert between HEX, RGB, and HSL color formats with a live preview.
Number Base Converter
Convert numbers between binary, decimal, hexadecimal, and octal bases.
Timestamp Converter
Convert Unix timestamps to human-readable dates and back.
Morse Code Translator
Convert text to Morse code and decode Morse code back to text.
Time Zone Converter
Convert times between different time zones worldwide.
Cooking Unit Converter
Convert between cups, tablespoons, milliliters, grams, and more.
Hex to Text
Convert hexadecimal strings to readable text and back.
Markdown to HTML
Convert Markdown text to HTML code.
CSV to Table
Convert CSV data to a formatted HTML table.
NATO Phonetic Alphabet
Convert text to NATO phonetic alphabet spelling.
Currency Converter
Convert between major world currencies with approximate rates.
Image to Base64
Convert images to Base64 encoded strings for embedding in code.
JSON to TypeScript
Generate TypeScript interfaces from JSON data.
PX to REM Converter
Convert between pixels and rem units for responsive design.
Inches to CM Converter
Convert inches to centimeters and centimeters to inches instantly.
Feet to Meters Converter
Convert feet to meters and meters to feet with decimal precision.
Miles to Kilometers Converter
Convert miles to kilometers and kilometers to miles.
KG to LBS Converter
Convert kilograms to pounds and pounds to kilograms.
Ounces to Grams Converter
Convert ounces to grams and grams to ounces.
Celsius to Fahrenheit Converter
Convert temperatures between Celsius and Fahrenheit scales.
Liters to Gallons Converter
Convert liters to gallons and gallons to liters (US and Imperial).
ML to OZ Converter
Convert milliliters to fluid ounces and fluid ounces to milliliters.
MPH to KPH Converter
Convert miles per hour to kilometers per hour and vice versa.
Square Feet to Square Meters
Convert square feet to square meters and vice versa.
Acres to Hectares Converter
Convert acres to hectares and hectares to acres.
Bytes Converter
Convert between bytes, KB, MB, GB, TB, and PB.
Cups to ML Converter
Convert cups to milliliters and milliliters to cups for cooking.
Stones to KG Converter
Convert stones to kilograms and kilograms to stones.
Nautical Miles Converter
Convert between nautical miles, miles, and kilometers.
Energy Unit Converter
Convert between joules, calories, kilowatt-hours, and BTU.
Pressure Unit Converter
Convert between PSI, bar, atm, Pascal, and mmHg.
Angle Converter
Convert between degrees, radians, gradians, and turns.
Yards to Meters Converter
Convert yards to meters and meters to yards instantly.
MM to Inches Converter
Convert millimeters to inches and inches to millimeters.
KM to Meters Converter
Convert kilometers to meters and meters to kilometers.
CM to Feet Converter
Convert centimeters to feet and feet to centimeters.
Tablespoons to ML Converter
Convert tablespoons to milliliters and milliliters to tablespoons.
Teaspoons to ML Converter
Convert teaspoons to milliliters and milliliters to teaspoons.
Pints to Liters Converter
Convert US pints to liters and liters to pints.
Quarts to Liters Converter
Convert US quarts to liters and liters to quarts.
Tons to KG Converter
Convert US short tons to kilograms and kilograms to tons.
Grams to Milligrams Converter
Convert grams to milligrams and milligrams to grams.
Carats to Grams Converter
Convert carats to grams and grams to carats for gemstones.
Troy Ounces to Grams Converter
Convert troy ounces to grams and grams to troy ounces.
Kelvin Converter
Convert between Kelvin and Celsius temperature scales.
Rankine Converter
Convert between Rankine and Fahrenheit temperature scales.
Light Years to KM Converter
Convert light years to kilometers and kilometers to light years.
Horsepower to Watts Converter
Convert horsepower to watts and watts to horsepower.
Watts to BTU Converter
Convert watts to BTU/hour and BTU/hour to watts.
Newtons to Pounds-Force Converter
Convert newtons to pounds-force and pounds-force to newtons.
RPM to Radians/Second Converter
Convert RPM to radians per second and back.
Knots to MPH Converter
Convert knots to miles per hour and miles per hour to knots.
Parsec to Light Years Converter
Convert parsecs to light years and light years to parsecs.
Fathoms to Feet Converter
Convert fathoms to feet and feet to fathoms.
Furlongs to Meters Converter
Convert furlongs to meters and meters to furlongs.
Chains to Meters Converter
Convert Gunter's chains to meters and meters to chains.
Hands to CM Converter
Convert hands to centimeters and centimeters to hands.
Imperial Gallons to Liters Converter
Convert Imperial (UK) gallons to liters and liters to Imperial gallons.
Bushels to Liters Converter
Convert US bushels to liters and liters to bushels.
Fluid Drams to ML Converter
Convert fluid drams to milliliters and milliliters to fluid drams.
Grains to Grams Converter
Convert grains to grams and grams to grains.
Pennyweight to Grams Converter
Convert pennyweight to grams and grams to pennyweight.
Slugs to KG Converter
Convert slugs to kilograms and kilograms to slugs.
Torr to Pascal Converter
Convert Torr to Pascal and Pascal to Torr.
Calories to Joules Converter
Convert calories to joules and joules to calories.
Electron Volts to Joules Converter
Convert electron volts to joules and joules to electron volts.
Decibels Converter
Convert between decibels and linear ratios for power and amplitude.
Bits to Bytes Converter
Convert bits to bytes and bytes to bits.
Pixels to Points Converter
Convert pixels to points and points to pixels based on DPI.
EM to PX Converter
Convert em units to pixels and pixels to em based on base font size.
RGB to CMYK Converter
Convert RGB color values to CMYK for print design.
Fahrenheit to Kelvin Converter
Convert Fahrenheit temperatures to Kelvin and Kelvin to Fahrenheit.
Meters per Second to MPH Converter
Convert meters per second to miles per hour and back.
Cubic Feet to Liters Converter
Convert cubic feet to liters and liters to cubic feet.
Atmospheres to PSI Converter
Convert atmospheres to PSI and PSI to atmospheres.
Scientific Notation Converter
Convert numbers to and from scientific notation.
Font Size Converter
Convert between px, pt, em, rem, and percentage font sizes.
Generators
40Password Generator
Generate strong, secure random passwords with customizable options.
UUID Generator
Generate universally unique identifiers (UUID v4) instantly.
QR Code Generator
Generate QR codes from any text or URL for easy sharing.
Color Palette Generator
Generate harmonious color palettes for your design projects.
Fake Data Generator
Generate fake names, emails, addresses, and more for testing.
Placeholder Image Generator
Generate placeholder images of any size with custom colors and text.
Invoice Generator
Create professional invoices that you can print or save as PDF.
Credit Card Validator
Validate credit card numbers using the Luhn algorithm.
Emoji Picker
Browse, search, and copy emojis organized by category.
Random Color Generator
Generate random colors with HEX, RGB, and HSL values.
.htaccess Generator
Generate Apache .htaccess rules for redirects, security, and caching.
Robots.txt Generator
Generate robots.txt files to control search engine crawling.
Privacy Policy Generator
Generate a basic privacy policy for your website.
Receipt Generator
Create professional receipts for transactions and payments.
Email Signature Generator
Create professional HTML email signatures with your info and social links.
NDA Generator
Generate basic non-disclosure agreement templates.
Random Image Generator
Generate random placeholder photos with custom dimensions.
Gradient Background Generator
Create beautiful gradient backgrounds with CSS code export.
Unicode Character Lookup
Search and browse Unicode characters by name, code point, or category.
Barcode Generator
Generate barcodes in various formats: Code128, EAN-13, UPC-A, and more.
Avatar Generator
Generate unique geometric avatars from any text or name.
Username Generator
Generate unique, creative usernames for social media and online accounts.
Short ID Generator
Generate short, unique IDs suitable for URLs, tokens, and identifiers.
Color Name Generator
Generate creative, evocative names for any hex color.
Lorem Ipsum JSON Generator
Generate realistic placeholder JSON data for prototyping and testing.
Mock API Response Generator
Generate complete mock REST API responses with headers and status codes.
CSS Shadow Palette Generator
Generate layered box-shadow palettes for depth and elevation effects.
Social Proof Generator
Generate realistic testimonial and review placeholders for UI mockups.
Terms of Service Generator
Generate a basic Terms of Service document for websites and apps.
Changelog Generator
Generate structured changelog entries following Keep a Changelog format.
README Generator
Generate a professional README.md template for your project.
Open Source License Generator
Generate open source license files for your software projects.
Commit Message Generator
Generate conventional commit messages from a description of your changes.
Regex Generator
Generate regular expressions from plain-English descriptions or examples.
Crontab Expression Generator
Generate cron expressions for scheduled tasks visually.
Passphrase Generator
Generate secure, memorable passphrase passwords from random words.
API Key Generator
Generate random API keys and tokens in various formats.
Port Number Reference
Look up common TCP/UDP port numbers and their associated services.
WiFi QR Code Generator
Generate QR codes that automatically connect devices to a WiFi network.
SVG Pattern Generator
Generate seamless SVG background patterns for websites and apps.
Image Tools
21Image Resizer
Resize images to any dimensions right in your browser.
Image Cropper
Crop images to custom dimensions or aspect ratios.
Image Compressor
Compress images to reduce file size while maintaining quality.
SVG to PNG Converter
Convert SVG vector images to PNG raster format.
Favicon Generator
Generate favicons in multiple sizes from any image.
Image to WebP Converter
Convert PNG, JPG, and GIF images to WebP format for smaller file sizes.
Image Flipper
Flip and mirror images horizontally or vertically.
Image Rotator
Rotate images by any angle with a visual preview.
Image Color Picker
Pick colors from any uploaded image and get HEX, RGB, HSL values.
Image Filter
Apply filters like grayscale, sepia, blur, brightness, and contrast to images.
PNG to JPG Converter
Convert PNG images to JPG format with adjustable quality.
Image Watermark
Add text or image watermarks to protect your photos.
Screenshot Beautifier
Add beautiful backgrounds, shadows, and borders to screenshots.
Color Palette Extractor
Extract a dominant color palette from any uploaded image.
Image to ASCII Art
Convert any image into ASCII art text output.
Image Metadata Viewer
View EXIF data, GPS coordinates, camera settings, and metadata from images.
Image Border Adder
Add customizable borders and frames to images.
Image Overlay
Overlay two images together with adjustable opacity and blend modes.
Meme Generator
Add impact-font text to images to create memes instantly.
GIF Maker
Create animated GIFs from multiple images with custom timing.
Color Mixer
Mix two or more colors together and see the resulting blended color.
Crypto & Security
15Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes from any input text.
Text Encryption/Decryption
Encrypt and decrypt text using AES encryption.
ROT13 Encoder
Encode and decode text using the ROT13 substitution cipher.
Caesar Cipher
Encrypt and decrypt text using the Caesar cipher with custom shift.
Password Strength Checker
Check how strong your password is and get improvement suggestions.
Checksum Calculator
Calculate and verify file checksums (MD5, SHA-1, SHA-256).
IP Address Lookup
Look up your public IP address and basic network information.
WHOIS Lookup
Look up domain registration information.
HMAC Generator
Generate HMAC authentication codes using various hash algorithms.
Bcrypt Hash Generator
Generate and verify bcrypt password hashes with configurable rounds.
SSL Certificate Checker
Check SSL certificate details, expiry date, and chain validity.
CSP Header Generator
Generate Content Security Policy headers for your website.
Random Bytes Generator
Generate cryptographically secure random bytes in hex or base64.
RSA Key Pair Generator
Generate RSA public/private key pairs for encryption.
DNS Lookup
Look up DNS records for any domain: A, AAAA, MX, TXT, CNAME, and NS.
SEO & Marketing
15Open Graph Preview
Preview how your website looks when shared on social media.
Keyword Density Checker
Analyze keyword density and frequency in your content.
Google SERP Preview
Preview how your page will look in Google search results.
UTM Link Builder
Build UTM-tagged URLs for tracking marketing campaigns.
Email Validator
Validate email address format and check for common issues.
Twitter Card Preview
Preview how your content will look when shared on Twitter/X.
Readability Checker
Check the readability score and reading level of your content.
Sitemap Generator
Generate XML sitemaps for your website from a list of URLs.
Schema Markup Generator
Generate JSON-LD structured data for rich search results.
SEO Slug Generator
Generate SEO-friendly URL slugs with keyword optimization.
Heading Analyzer
Analyze and score your headlines for SEO effectiveness and emotional impact.
Backlink Checker
Analyze any site's SEO health: security headers, meta tags, robots.txt, sitemap, and get links to professional backlink tools.
Meta Tag Length Checker
Check if your title tags and meta descriptions are the optimal length.
Page Speed Checker
Test your website loading speed and get optimization suggestions.
Redirect Checker
Check URL redirect chains and find redirect loops.
Utilities
20Pomodoro Timer
Stay focused with the Pomodoro technique — 25 min work, 5 min break.
Countdown Timer
Set a countdown timer to any date or duration.
Stopwatch
A simple stopwatch with lap tracking functionality.
Online Notepad
A simple browser-based notepad that saves to local storage.
Screen Resolution Detector
Detect your screen resolution, viewport size, and device pixel ratio.
Color Blindness Simulator
See how your designs look to people with different types of color blindness.
Aspect Ratio Calculator
Calculate aspect ratios and resize dimensions proportionally.
Text to Speech
Convert text to speech using your browser's built-in speech synthesis.
Keyboard Tester
Test every key on your keyboard and see which keys are working.
Internet Speed Test
Test your internet download and upload speed.
Clipboard Manager
Save and manage multiple clipboard items for quick access.
Loan Comparison Calculator
Compare multiple loan offers side by side.
Habit Tracker
Track daily habits with a visual streak calendar saved to your browser.
Battery Status
Check your device battery level, charging status, and estimated time.
Random Quote Generator
Generate inspirational and motivational quotes from famous thinkers.
Online Whiteboard
Simple browser-based whiteboard for freehand drawing and sketching.
Unit Price Calculator
Compare unit prices to find the best value between products.
Tip Guide
Tipping guide by country with recommended percentages for services.
Password Manager Helper
Generate and organize strong passwords in your browser without cloud storage.
World Clock
View current time in multiple cities and time zones simultaneously.
Finance Tools
30Mortgage Calculator
Calculate monthly mortgage payments, total interest, and amortization schedule.
Salary to Hourly Calculator
Convert annual salary to hourly rate and vice versa.
Tax Estimator
Estimate your federal income tax based on income and filing status.
Retirement Calculator
Estimate how much you need to save for retirement.
ROI Calculator
Calculate Return on Investment for any business decision or investment.
Inflation Calculator
Calculate how inflation affects purchasing power over time.
Savings Goal Calculator
Calculate how long it takes to reach a savings goal with regular deposits.
Margin Calculator
Calculate profit margin, markup, and cost from any two values.
VAT Calculator
Calculate VAT amounts, add VAT to a price, or remove VAT from a total.
Debt Payoff Calculator
Plan your debt payoff strategy and see how extra payments help.
Auto Loan Calculator
Calculate monthly car loan payments with trade-in and down payment.
Break-Even Calculator
Calculate the break-even point for your business or product.
Stock Profit Calculator
Calculate profit or loss from stock trades including fees and taxes.
CAGR Calculator
Calculate Compound Annual Growth Rate for investments.
EMI Calculator
Calculate Equated Monthly Installments for loans.
Rental Yield Calculator
Calculate gross and net rental yield on investment properties.
Credit Card Payoff Calculator
See how long it takes to pay off credit card debt with minimum payments.
Net Worth Calculator
Calculate your total net worth from assets and liabilities.
Payroll Calculator
Calculate gross pay, tax deductions, and net pay for employees.
Currency Exchange Calculator
Calculate currency exchange amounts with real-time rates and fees.
Tip & Bill Splitter
Split a restaurant bill and calculate tip amounts per person.
Freelance Hourly Rate Calculator
Calculate the minimum hourly rate needed to meet your income goals.
Cost Per Unit Calculator
Calculate cost per unit to compare product value and buying efficiency.
Markup to Margin Converter
Convert between markup percentage and profit margin percentage.
Simple Interest Calculator
Calculate simple interest on a loan or investment.
Future Value Calculator
Calculate the future value of an investment with regular contributions.
Present Value Calculator
Calculate the present value of a future sum or cash flow stream.
Dividend Yield Calculator
Calculate dividend yield, annual income, and dividend growth projections.
Rent vs Buy Calculator
Compare the true cost of renting vs buying a home over time.
Cost of Living Calculator
Estimate the salary needed to maintain your lifestyle in a new city.
Health & Fitness
22Calorie Calculator
Calculate daily calorie needs based on age, weight, height, and activity level.
BMR Calculator
Calculate your Basal Metabolic Rate — calories burned at rest.
TDEE Calculator
Calculate Total Daily Energy Expenditure based on activity level.
Body Fat Calculator
Estimate body fat percentage using the US Navy method.
Ideal Weight Calculator
Calculate your ideal weight range based on height and frame size.
Pregnancy Due Date Calculator
Estimate your due date based on your last menstrual period.
Water Intake Calculator
Calculate how much water you should drink daily based on weight and activity.
Macro Calculator
Calculate optimal macronutrient ratios (protein, carbs, fat) for your goals.
Heart Rate Zone Calculator
Calculate target heart rate zones for cardio training.
Running Pace Calculator
Calculate running pace, speed, and finish time for any distance.
BAC Calculator
Estimate blood alcohol content based on drinks, weight, and time.
Sleep Cycle Calculator
Calculate optimal bedtime and wake-up times based on sleep cycles.
Ovulation Calculator
Estimate ovulation dates and fertile window from cycle data.
Protein Intake Calculator
Calculate daily protein needs based on weight and fitness goals.
One Rep Max Calculator
Estimate your one-rep max from the weight and reps of a set.
Blood Type Calculator
Determine possible child blood types based on parents' blood types.
Shoe Size Converter
Convert shoe sizes between US, UK, EU, and international standards.
Dog Age Calculator
Convert dog years to human years using breed-size-adjusted formulas.
Pregnancy Weight Tracker
Track healthy pregnancy weight gain based on BMI and guidelines.
VO2 Max Calculator
Estimate your VO2 max from running performance data.
Lean Body Mass Calculator
Calculate lean body mass from weight and body fat percentage.
Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio to assess health risk.
Date & Time
22Date Difference Calculator
Calculate the exact number of days, weeks, months, and years between two dates.
Add/Subtract Days Calculator
Add or subtract days, weeks, months, or years from any date.
Days Until Calculator
Calculate how many days until a specific date or event.
Week Number Calculator
Find the ISO week number for any date and see the full week calendar.
Business Days Calculator
Calculate the number of business days (excluding weekends) between dates.
Time Duration Calculator
Calculate duration between two times and add/subtract time intervals.
Current Unix Timestamp
View the current Unix timestamp updating in real-time with conversions.
Calendar Generator
Generate printable monthly and yearly calendars.
Age in Days Calculator
Find out exactly how many days, hours, and minutes old you are.
Leap Year Checker
Check if any year is a leap year and see the next leap years.
Time Zone Map
Interactive world map showing all time zones with current times.
Date Format Converter
Convert dates between different formats (ISO, US, EU, Unix, etc.).
Holiday Calculator
Find public holidays and count working days for any country and year.
Timezone Abbreviations
Look up timezone abbreviations like EST, PST, GMT, IST, and more.
Epoch Converter
Convert epoch milliseconds or seconds to human-readable dates and back.
Date Range Generator
Generate a list of all dates between two specified dates.
Workday Calculator
Find the date that falls exactly N business days from a given date.
Moon Phase Calculator
Calculate the moon phase for any date — new, full, crescent, and more.
Sunrise & Sunset Calculator
Calculate sunrise and sunset times for any location and date.
Day of the Week Finder
Find what day of the week any date falls on — past or future.
Fiscal Year Calculator
Calculate fiscal year quarters, start/end dates, and current period.
New Year Countdown
Live countdown to the next New Year with days, hours, minutes, and seconds.
PDF Tools
10PDF Merger
Merge multiple PDF files into a single PDF document.
PDF Splitter
Split PDF files into individual pages or custom page ranges.
PDF Compressor
Compress PDF files to reduce file size while keeping quality.
PDF to Image Converter
Convert PDF pages to PNG or JPG images.
Image to PDF Converter
Convert images (JPG, PNG, WebP) to a PDF document.
HTML to PDF Converter
Convert HTML content or web pages to PDF documents.
PDF Page Numberer
Add page numbers to PDF documents with custom positioning.
PDF Watermark
Add text or image watermarks to PDF documents.
PDF Page Rotator
Rotate PDF pages by 90, 180, or 270 degrees.
PDF to Text Extractor
Extract text content from PDF files.
Education
20Grade Calculator
Calculate your final grade with weighted assignments and exams.
Citation Generator
Generate citations in APA, MLA, Chicago, and Harvard formats.
Flashcard Maker
Create study flashcards with flip animations saved to your browser.
Interactive Periodic Table
Browse elements with properties, electron configuration, and more.
Multiplication Table
Generate interactive multiplication tables up to any size.
Reading Speed Test
Test your reading speed in words per minute with comprehension check.
Math Quiz Generator
Generate random math practice quizzes with adjustable difficulty.
Essay Word Counter
Count words with essay-specific features: page estimate, paragraph count, and reading time.
Unit Circle Calculator
Interactive unit circle showing sine, cosine, and tangent values.
Binary Calculator
Perform arithmetic operations on binary numbers with step-by-step display.
Significant Figures Calculator
Round numbers to the correct number of significant figures.
Molecular Weight Calculator
Calculate the molecular weight of chemical compounds from their formula.
Study Timer
Track study sessions with break reminders and progress logging.
Number Line Generator
Generate visual number lines for math education and practice.
Equation Solver
Solve linear and quadratic equations with step-by-step solutions.
Set Operations Calculator
Calculate union, intersection, and difference of two sets.
Truth Table Generator
Generate truth tables for logical expressions and boolean operations.
Probability Distribution Calculator
Calculate normal and binomial probability distributions.
Statistics Visualizer
Enter data and visualize statistics with mean, median, mode, and charts.
Typing Speed Test
Test your typing speed and accuracy with WPM and error tracking.
Writing Tools
25Paraphrase Tool
Rephrase text while maintaining the original meaning.
Grammar Checker
Check text for grammar, spelling, and punctuation errors.
Headline Analyzer
Analyze headlines for emotional impact, power words, and length.
Blog Title Generator
Generate catchy blog post titles from your topic or keywords.
Text Summarizer
Summarize long articles and documents into key points.
Sentence Counter
Count sentences and analyze average sentence length for readability.
Passive Voice Checker
Detect and highlight passive voice usage in your writing.
Cliche Checker
Find overused phrases and cliches in your writing.
Transition Word Finder
Identify and suggest transition words for better writing flow.
Writing Prompt Generator
Generate creative writing prompts for stories, essays, and journals.
Email Template Generator
Generate professional email templates for common business scenarios.
Alliteration Finder
Find and highlight alliterative phrases in your text.
Rhyme Finder
Find rhyming words for poetry, songwriting, and creative projects.
Text Statistics Analyzer
Analyze text with detailed stats: syllables, Flesch score, grade level, and more.
Outline Generator
Generate structured outlines for essays, articles, and presentations.
Word Spinner
Spin/rewrite individual words with synonyms for variety.
Adverb Checker
Find and reduce adverb usage for stronger, more precise writing.
Readability Improver
Suggest simpler alternatives for complex words to improve clarity.
Abstract Generator
Generate concise abstracts for academic papers and research articles.
Thesis Statement Generator
Generate clear, arguable thesis statements for essays and papers.
Conclusion Generator
Generate strong conclusion paragraphs for essays and articles.
Hook Generator
Generate compelling opening hooks for essays, blogs, and speeches.
Metaphor Generator
Generate creative metaphors to add depth and color to your writing.
Tone Analyzer
Analyze the tone of your writing — formal, casual, positive, negative.
Cover Letter Helper
Generate professional cover letter templates with customizable sections.
Business Tools
15Invoice Maker Pro
Create professional invoices with line items, tax, and export to PDF.
Business Name Generator
Generate creative business name ideas based on your industry and keywords.
Meeting Cost Calculator
Calculate the true cost of meetings based on attendees and salaries.
QR Code Business Card
Generate a QR code vCard that saves your contact info to any phone.
Time Tracker
Track time spent on tasks and projects with start/stop and manual entry.
Profit & Loss Calculator
Create a simple P&L statement from revenue and expense entries.
Employee Cost Calculator
Calculate the total cost of hiring an employee including benefits and taxes.
SLA Uptime Calculator
Calculate allowed downtime for 99.9%, 99.99%, and custom SLA percentages.
Domain Name Checker
Check if domain names are available for your business.
Terms of Service Generator
Generate basic terms of service for your website or app.
Cookie Policy Generator
Generate GDPR-compliant cookie policies for your website.
ROI Timeline Calculator
Calculate return on investment over time periods with projections.
Burn Rate Calculator
Calculate monthly cash burn rate and runway for startups.
Customer Lifetime Value Calculator
Calculate CLV to understand the long-term value of your customers.
Shipping Cost Calculator
Estimate shipping costs based on weight, dimensions, and destination.
Gaming & Fun
15Dice Roller
Roll virtual dice with custom sides, quantities, and modifiers.
Coin Flip
Flip a virtual coin with realistic animation and history tracking.
Random Name Picker
Pick random names or items from a list with animation.
Wheel Spinner
Spin a customizable wheel to make random decisions with flair.
Team Generator
Randomly split a group of people into balanced teams.
Online Scoreboard
Keep score for games with customizable player names and point tracking.
Trivia Question Generator
Generate random trivia questions across various categories.
Bingo Card Generator
Generate printable bingo cards with custom numbers or words.
Truth or Dare Generator
Generate truth or dare prompts for parties and gatherings.
Would You Rather
Generate fun 'would you rather' questions for parties and icebreakers.
Reaction Time Test
Test your reaction time with visual and audio cues.
Number Guessing Game
Guess the number with hints — a fun logic game with difficulty levels.
D&D Character Generator
Generate random D&D 5e characters with stats, class, race, and backstory.
Lottery Number Generator
Generate random lottery number combinations for popular lottery games.
Countdown Numbers Game
Reach the target number using basic operations — inspired by the TV show.
Social Media
15Instagram Fonts Generator
Generate stylish fonts and special text for your Instagram bio and posts.
Hashtag Generator
Generate relevant hashtags for Instagram, TikTok, and Twitter posts.
Social Media Image Resizer
Resize images to perfect dimensions for every social media platform.
Social Character Counter
Count characters with limits for Twitter (280), Instagram (2200), and more.
YouTube Thumbnail Downloader
Download thumbnails from any YouTube video in multiple resolutions.
Twitter Thread Maker
Break long text into numbered tweet-sized threads with character counting.
Social Bio Generator
Generate creative bios for Instagram, Twitter, LinkedIn, and TikTok.
Engagement Rate Calculator
Calculate social media engagement rate from followers, likes, and comments.
YouTube Revenue Calculator
Estimate YouTube ad revenue based on views and CPM rates.
Best Time to Post Calculator
Find the optimal posting times for each social platform by timezone.
TikTok Caption Counter
Count characters for TikTok captions with the 2200 character limit.
Social Media Content Calendar
Plan and organize your social media content calendar by platform and date.
Caption Generator
Generate engaging social media captions from keywords or topics.
Follower Count Formatter
Format large follower counts as 1.2K, 3.4M, or 1.1B for display.
LinkedIn Post Formatter
Format LinkedIn posts with bold, italic, emojis, and bullet points.