Free online utilities for developers, designers, and everyday use
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Escape or unescape backslash sequences in text
Encode text to Base64 or decode Base64 strings
Format, validate, and beautify JSON with syntax highlighting
Convert timestamps to human-readable dates and vice versa
Convert CSV data to JSON array format
Test and debug regular expressions with live matching
Encode or decode URL components and query strings
Decode and inspect JSON Web Tokens
Convert JSON data to YAML format
Convert YAML data to JSON format
Encode or decode HTML entities and special characters
Convert JSON arrays to CSV format
Compare two JSON documents and highlight differences
Minify JSON by removing whitespace and formatting
Test JSONPath expressions against JSON data
Parse and explain cron schedule expressions
Generate random UUIDs (v4) instantly
Generate SHA-256, SHA-512, and other hash digests
Browse and search all HTTP status codes
Format and beautify SQL queries
Generate TypeScript interfaces from JSON data
Convert Markdown syntax to clean HTML
Convert HTML code to Markdown syntax
Format, beautify, and validate XML documents
Minify CSS by removing whitespace and comments
Minify JavaScript by removing whitespace and comments
Minify HTML by removing whitespace and comments
Generate .gitignore files for any project type
Calculate Unix file permissions in numeric and symbolic notation
Convert TOML configuration to JSON format
Convert JSON data to XML format
Extract HTML table data into CSV format
Convert cURL commands to JavaScript fetch code
Encode text to Base32 or decode Base32 strings
Generate JSON Schema from sample JSON data
Count words, characters, sentences, and paragraphs
Convert text between camelCase, snake_case, and more
Generate placeholder text for designs and layouts
Compare two texts and highlight differences
Reverse any text string instantly
Convert text to URL-friendly slugs
Write Markdown and see a live preview
Find and replace text with optional regex support
Sort lines of text alphabetically or numerically
Remove duplicate lines from text
Truncate text to a specific length with ellipsis
Convert text to binary and binary to text
Clean up extra whitespace from text
Convert text to NATO phonetic alphabet
Generate random strings with custom options
Browse and copy Unicode characters and symbols
Browse and copy emojis by category
Convert text to ASCII art with different fonts
Convert text to Morse code and back
Convert text to hexadecimal and hex to text
Estimate how long it takes to read your text
Analyze text for words, sentences, paragraphs, and readability
Find and remove invisible and zero-width characters
Check if a word or phrase is a palindrome
Translate English text to Pig Latin and back
Repeat text multiple times with custom separators
Randomly shuffle and reorder a list of items
Convert numbers to their English word representation
Encrypt and decrypt text with Caesar cipher and ROT13
Transform text into fancy Unicode font styles
Extract specific columns from tabular text data
Remove all HTML tags from text
View ASCII and Unicode code points for each character
Create glitchy Zalgo text with combining characters
Generate HTML meta tags for SEO
Generate Open Graph meta tags for social sharing
Generate robots.txt files for search engines
Generate XML sitemaps for search engines
Analyze keyword frequency and density in text
Preview how your page appears in Google search results
Generate canonical URL tags to prevent duplicate content
Generate JSON-LD structured data for rich results
Check URL redirects and redirect chains
Interactive checklist for optimizing page speed
Analyze HTML heading hierarchy for SEO
Generate Twitter Card meta tags for X/Twitter sharing
Generate hreflang tags for multilingual websites
Generate FAQ structured data for rich search results
Generate breadcrumb structured data for navigation
Check SEO title and meta description length and quality
Preview how your Open Graph image appears on social platforms
Build UTM-tagged URLs for campaign tracking
Generate Apache .htaccess redirect rules
Analyze anchor text distribution in your HTML content
Reference guide for social media image dimensions
Calculate percentages, increases, and decreases
Convert between binary, octal, decimal, and hex
Convert between common units of measurement
Calculate and maintain aspect ratios
Convert between bytes, KB, MB, GB, and TB
Convert between standard and scientific notation
Generate random numbers within a range
Calculate factorials and permutations
Calculate greatest common divisor and least common multiple
Convert between Roman numerals and decimal numbers
Calculate mean, median, mode, and standard deviation
Convert between hexadecimal and decimal numbers
Check if a number is prime and find nearby primes
Generate Fibonacci numbers up to any position
Solve quadratic equations step by step
Add, subtract, multiply, and divide fractions
Perform matrix operations: add, multiply, transpose, determinant
Calculate probabilities for common scenarios
Calculate mean, median, mode, and range
Calculate powers, roots, and exponential expressions
Calculate logarithms with any base
Solve ratios and proportions with missing values
Perform arithmetic operations on binary numbers
Calculate standard deviation and variance
Calculate area of common geometric shapes
Convert colors between HEX, RGB, and HSL
Generate harmonious color palettes from a base color
Check WCAG color contrast ratios for accessibility
Create CSS linear and radial gradients visually
Design CSS box shadows with a visual editor
Preview and generate CSS border-radius values
Convert between px, rem, em, vh, and vw
Simulate how colors look with color vision deficiency
Generate placeholder images for mockups and development
Convert SVG code to CSS background-image data URI
Get font pairing suggestions for your designs
Convert Tailwind CSS classes to plain CSS
Find the closest named color for any hex value
Visually create CSS Grid layouts and get the code
Experiment with CSS Flexbox properties visually
Create CSS keyframe animations visually
Preview CSS filter effects with interactive controls
Generate harmonious typography scales for your design system
Generate consistent spacing scales for design systems
Create CSS text-shadow effects with live preview
Visualize CSS transform properties interactively
Generate dark mode color schemes from light mode palettes
Create frosted glass effects with CSS
Create soft UI neumorphism effects with CSS
Generate random organic blob shapes as SVG
Create wave dividers and backgrounds as SVG
Complete reference for app icon sizes across platforms
Stay focused with the Pomodoro technique timer
Generate QR codes for URLs, text, and more
Generate strong, secure passwords
Check how strong your password is
Validate email address format and syntax
Look up information about any IP address
Convert time between different timezones
Calculate days between dates or add/subtract days
Calculate your exact age in years, months, and days
Set a countdown timer with alarm
Precise stopwatch with lap timing
View current time across multiple timezones
Quick notepad with auto-save to browser
Create and manage interactive checklists
Convert text to spoken audio using browser speech synthesis
Find your Chinese zodiac animal and element from your birth year
Calculate your Body Mass Index
Calculate the hourly cost of your meetings
Test your typing speed and accuracy
Track daily habits and build streaks
Plan your day with time blocks and tasks
Get reminded to take regular breaks while working
Make random decisions with a spinning wheel
Flip a virtual coin with animated results
Roll virtual dice with custom sides and quantities
Track time spent on tasks and projects
Calculate ideal bedtime and wake-up times based on sleep cycles
Calculate daily calorie needs based on your goals
Calculate your Total Daily Energy Expenditure
Estimate body fat percentage using body measurements
Generate random colors in hex, RGB, and HSL
View your screen resolution and display information
Calculate compound interest and investment growth
Calculate monthly payments and total loan cost
Calculate tips and split bills easily
Convert between world currencies with live rates
Calculate sales tax on purchases
Calculate return on investment
Plan how to reach your savings target
Create professional invoices quickly
Calculate monthly mortgage payments and total interest
Calculate your total net worth from assets and liabilities
Plan your retirement savings and income
Plan your debt repayment strategy
Calculate your ideal emergency fund size
Calculate federal income tax by bracket
Convert between hourly wage and annual salary
Calculate and convert between markup and profit margin
Calculate discounted prices and savings
Calculate stock investment returns and gains
Calculate your business break-even point
Estimate your take-home pay after deductions
Calculate the impact of inflation on purchasing power
Calculate the future value of an investment
Generate a complete loan amortization table
Compare prices by calculating cost per unit
Compare the costs of renting vs buying a home
Calculate how long to pay off credit card debt