All Tools
37 free tools — no sign-up required.
Text Tools
Analyze, transform, and work with text content
Word Counter
Count words, characters (with and without spaces), sentences, and paragraphs in any text instantly.
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE.
Slug Generator
Convert any text into a clean, URL-safe slug for use in web addresses, file names, and SEO-friendly permalinks.
Lorem Ipsum Generator
Generate placeholder lorem ipsum text by paragraphs, sentences, or words for use in mockups and design layouts.
Line Sorter
Sort lines of text alphabetically (A–Z or Z–A), by length, in reverse order, or shuffle them randomly.
Remove Duplicate Lines
Instantly strip duplicate lines from any block of text, with options for case-insensitive comparison and whitespace trimming.
Readability Analyzer
Analyze text readability with Flesch-Kincaid Reading Ease and Grade Level scores, plus sentence and syllable statistics.
Math & Numbers
Calculators and number-crunching utilities
Percentage Calculator
Calculate percentages three ways: find X% of Y, what percent X is of Y, or the percentage change between two values.
Tip Calculator
Calculate the tip on a restaurant bill and split the total evenly across any number of people.
Age Calculator
Calculate your exact age in years, months, and days from your date of birth, plus a countdown to your next birthday.
Date Difference Calculator
Find the exact number of days, weeks, months, years, and business days between any two dates.
Converters
Convert between units, formats, and data types
Temperature Converter
Convert temperatures instantly between Celsius, Fahrenheit, and Kelvin with common reference points.
Length Converter
Convert length and distance between metric and imperial units: mm, cm, m, km, inches, feet, yards, and miles.
Weight Converter
Convert weight between metric and imperial units: milligrams, grams, kilograms, metric tons, ounces, pounds, and stone.
Color Converter
Convert colors between HEX, RGB, and HSL formats with a live color preview swatch and one-click copy.
Number Base Converter
Convert numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) instantly.
Generators
Generate passwords, names, Lorem Ipsum, and more
Password Generator
Generate strong, random passwords with customizable length and character sets, plus a real-time strength meter.
UUID Generator
Generate one or multiple UUID v4 values instantly — perfect for databases, APIs, and unique identifier needs.
Random Number Generator
Generate random integers or decimals within a custom range, with options for quantity, decimal places, and duplicate prevention.
Username Generator
Generate creative random username ideas in multiple styles — great for gaming, social media, and online accounts.
SEO & Web
Tools for web developers and content creators
Meta Tag Generator
Build complete HTML meta tags for title, description, robots, author, and canonical URL with character count warnings.
UTM Link Builder
Build UTM-tagged campaign URLs for Google Analytics tracking by appending utm_source, utm_medium, utm_campaign, and more.
Open Graph Tag Generator
Generate Open Graph and Twitter Card meta tags for rich social sharing previews on Facebook, X (Twitter), and LinkedIn.
Robots.txt Generator
Build a valid robots.txt file with allow/disallow rules for any user-agent, plus sitemap and crawl-delay settings.
Keyword Density Analyzer
Analyze keyword frequency and density in any text — useful for SEO content optimization and avoiding keyword stuffing.
Business & Finance
Calculators for profit, pricing, ROI, and freelance finance
Discount Calculator
Calculate the sale price, savings amount, and savings percentage from an original price and discount percentage.
Profit Margin Calculator
Calculate gross profit margin percentage and markup from cost and selling price — essential for pricing products and services.
Freelance Rate Calculator
Calculate the minimum hourly rate to charge as a freelancer based on your income goal, expenses, taxes, and billable hours.
ROI Calculator
Calculate return on investment (ROI), net profit, and annualized ROI for any investment or business project.
Break-Even Calculator
Find the number of units and revenue needed to cover your fixed costs — essential for product pricing and business planning.
Cap Rate Calculator
Calculate the capitalization rate for real estate investments from net operating income (NOI) and property value.
Recipe Scaler
Scale recipe ingredients up or down by any multiplier — ideal for restaurants, catering, meal prep, and home cooks.
Health & Fitness
BMI, TDEE, macros, and nutrition calculators
BMI Calculator
Calculate your Body Mass Index (BMI) in metric or imperial units and see which weight category you fall into.
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) using the Harris-Benedict formula and your activity level.
Calorie Deficit Calculator
Calculate your daily calorie target for weight loss or gain based on your TDEE and desired weekly rate of change.
Macro Calculator
Calculate your daily protein, carbohydrate, and fat targets in grams based on your calorie goal, body weight, and fitness goal.
Water Intake Calculator
Calculate your recommended daily water intake in ounces, liters, cups, and milliliters based on body weight and activity level.