All tools
Browse free browser-based tools for text, development, encoding, images, conversions, math, CSS, and everyday utilities. No signup required.
Showing 492 tools
Free online lorem ipsum generator
Fix missing or incorrect punctuation marks and apply consistent spacing in text
Analyze text for syllable count, sentence length, and average word length
Convert JSON arrays into formatted Markdown tables with headers and alignment
Generate utility CSS classes for spacing, typography, colors, and flexbox layouts
Free online robots.txt generator
Generate security HTTP headers including CSP, HSTS, X-Frame-Options, and more
Generate XML sitemaps for SEO to help search engines index your pages faster
Generate complete color palettes from a single base color with hex and RGB codes
Calculate aspect ratios and find standard dimensions for any image size
Generate one-way hashes from any text input using multiple hashing algorithms
Extract and decode all query parameters from a URL into a clean key-value list
Free online word counter
Free online character counter with Twitter (280), LinkedIn (3000), and meta description (160) limit indicators
Free online duplicate line remover
Free online case converter
Free online grammar and spell checker
Calculate Flesch-Kincaid and other readability scores for your text content
Free online JSON formatter, validator, and minifier
Generate Schema.org JSON-LD structured data for websites
Encode and decode URLs or URL components for safe use in links
Crop images to any ratio or preset size - passport, 16:9, square, and more
Automatically trim solid-color borders and padding from an image
Pick a color with an eyedropper and erase every matching pixel to transparency
Crop images to perfect squares for Instagram, Facebook, Twitter, and more
Crop images into perfect circles with transparent, white, or blurred backgrounds
Convert images between JPEG, PNG, WebP, and AVIF with quality control and side-by-side preview
Free online favicon generator
Free online image resizer
Free online UUID v4 generator
Free online Markdown to HTML converter with live split-pane preview
Convert between JSON and YAML with live side-by-side panes
Free online HTML entity encoder and decoder
Free online cron expression parser
Generate Cross-Origin Resource Sharing (CORS) headers for your web server
Generate SHA-256 hashes from any text input with one-click copy
Free online screen resolution tester
Free online URL slug generator
Free online regex tester with live match highlighting, capture group display, and pattern explanations
Free online JWT decoder
Free online cron expression generator
Generate Apache .htaccess redirect rules for HTTP to HTTPS, www handling, and custom redirects
Free online meta tag generator
Free Google SERP preview tool
Pick any color and get HEX, RGB, HSL, and CSS values with a live preview swatch
Check text and background contrast for WCAG AA and AAA accessibility compliance
Free online unit converter
Free online number base converter
Free online percentage calculator
Visually generate CSS border-radius values with per-corner controls, live preview, and one-click copy
Compile SCSS or indented Sass into clean CSS instantly in your browser
Free online CSS gradient generator
Format, validate, and prettify XML with syntax highlighting and error detection
Format and indent SQL queries with keyword highlighting and customizable style
Minify JavaScript code by removing whitespace, comments, and optimizing for production
Mix two or more colors to create new palettes with adjustable blend modes
Create beautiful multi-stop gradients for backgrounds, UI, and design projects
Free online QR code generator
Compress images to reduce file size while maintaining quality with side-by-side comparison
Free online password generator
Check password strength with entropy scoring and tips to make it more secure
Generate random integers or decimals within a custom range with optional unique values
Shuffle a list of items into a random order with one-click copy of results
Generate realistic fake names, emails, addresses, and other data for testing and prototyping
Identify likely hash algorithms from a pasted digest by length, format, and known prefixes such as MD5, SHA-1, SHA-256, bcrypt, and Argon2
Free online uptime calculator
Convert JSON data into TypeScript interfaces and types with optional strict mode
Generate random strings with custom character sets, length, and format for tokens and keys
Parse URL components into protocol, domain, port, path, query, and fragment parts
Convert any phrase or title into a clean URL-friendly slug with customizable separator
Convert binary strings to ASCII text and vice versa with instant encoding preview
Calculate percentage difference between two values with direction and absolute result options
Calculate exact age in years, months, days, and total days from any birth date
Set a countdown timer with custom duration, alerts, and sound notifications
Simulate how colors appear to people with different types of color vision deficiency
Convert HTML to Markdown format with options to preserve links, images, and code blocks
Free online JSONPath tester
Convert between JSON and XML with live side-by-side panes, attribute handling, and root element control
Validate CSS against W3C standards and catch syntax errors, unsupported properties, and accessibility issues
Validate HTML markup and catch missing tags, deprecated elements, and accessibility issues
Convert plain text into handwritten-style text using a realistic cursive or print font
Validate email addresses for correct format and check domain MX records for deliverability
Validate credit card numbers using the Luhn algorithm and identify the card network
Generate time-ordered UUID v7 values suitable for database keys and distributed systems
Generate random IPv4 or IPv6 addresses for testing, mocking, and network simulations
Free online JSON Schema validator
Check URL slug availability and analyze permalink structure for SEO-friendly paths
Analyze keyword frequency and density in text or HTML content for SEO optimization
Create HTML slideshows from markdown or text with transitions, themes, and keyboard navigation
Count words and characters in plain text without formatting or special characters
Generate all possible anagrams from any word or phrase with one click
Get an inspiring or random quote of the day with author attribution
Convert text to and from Morse code with audio playback and dot-dash display
Convert Unix timestamps to human-readable dates and vice versa with timezone support
Generate realistic email addresses with custom domains for testing and prototyping
Convert times between multiple timezones with daylight saving and current time display
Generate random fractions, decimals, or mixed numbers within a custom range
Apply ROT47 rotation to encode or decode text using the 94-character ASCII range
Find potential hash collisions for short inputs across MD5, SHA-1, and SHA-256
Compare two semantic version strings and see which is greater, equal, or invalid
Generate random IPv6 addresses in full, compressed, or EUI-64 format for testing
Generate random MAC addresses in OUI, EUI-48, or EUI-64 format for network testing
Create styled HTML tables with custom rows, columns, borders, and striped or highlighted rows
Convert images to Base64 data URLs or decode Base64 back to image files instantly
Generate complementary, analogous, triadic, and split-complementary color palettes from any base hue
Free Open Graph preview tool
Preview how a webpage appears when shared on Twitter with large or summary card
Inspect Unicode characters - view code points, UTF-8 bytes, and HTML entities
Detect hidden homoglyph attacks in domain names and identifiers using lookalike characters
Quick reference for common shell commands with syntax examples and practical use cases
Parse and identify browser, OS, and device from any User-Agent string instantly
Browse common physics constants with units, symbols, and precise decimal values
Sort text lines alphabetically, by length, numerically, or in reverse and random order
Search thousands of emojis by keyword and copy the raw Unicode character
Generate URL-friendly slugs from any text with customizable separator and length
Convert between JSON and CSV with live side-by-side panes, header detection, and type inference
Free online Unix timestamp converter
Analyze word and phrase frequency in any text for SEO and content optimization
Query any public GraphQL endpoint with syntax highlighting, history, and variable support
Connect to a WebSocket server, send messages, and inspect real-time responses
Check DNS A and AAAA resolution for a hostname in your browser
Build and test LDAP search filters with a visual query builder and syntax validation
Transcribe speech to text using your browser microphone with real-time output
Convert between CSV and TSV with live side-by-side panes and proper quoting
Check English grammar errors with detailed suggestions for punctuation, style, and clarity
Detect and fix typos, misspellings, and common writing mistakes in any text instantly
Generate regex patterns from natural language descriptions for common use cases like emails and URLs
Convert plain CSS into SCSS with automatic selector nesting and variable handling
Analyze robots.txt files to check crawler directives, blocked paths, and sitemap references
Convert numbers to Roman numerals and vice versa with validation and formatting
Convert fractions and mixed numbers to decimal format with rounding and precision options
Count how often each word appears in text with sorted frequency and percentage breakdown
Check if any word, phrase, or number reads the same forwards and backwards
Estimate how long it takes to read any text based on average reading speed
Count syllables in any word or phrase using heuristic vowel group detection
Encode URLs and query parameters for safe transmission and proper formatting
Free online image to Base64 converter
Extract top keywords and key phrases from any text or webpage for SEO analysis
Convert length and distance between metric and imperial units - meters, feet, inches, and more
Convert weight between kilograms, pounds, ounces, grams, and stone instantly
Create colorful digital sticky notes for reminders, to-do lists, and quick annotations
Generate fake lorem ipsum, pangrams, placeholder text, and random sentences for design mockups
Find and highlight duplicate lines in text with one-click removal and line numbering
Parse and validate .env files, extract keys and values, and detect syntax errors
Convert JSON to TypeScript interfaces with optional strict types, nullability, and readonly fields
Optimize images for web by compressing JPEG, PNG, WebP, and AVIF with quality control
Scan any webpage and identify broken or dead links with HTTP status codes
Track major Google algorithm updates and see which SEO factors were impacted
Find the nearest named color for any HEX, RGB, or HSL value from color databases
Convert amounts between currencies using up-to-date exchange rates in your browser
Convert text or images into ASCII art with adjustable font size and character set
View ASCII, UTF-8, HTML entities, URL encoding, Base64, and more encoding reference tables
Search and reference common MIME types for file formats and HTTP content-type headers
Generate CSS Grid layouts with a visual editor - rows, columns, gaps, and areas
Free online CSS Flexbox generator
Edit JSON with syntax highlighting, tree view, validation, and real-time formatting
Convert between JSON and TOML with live side-by-side panes
Generate Docker CLI commands from a visual form - run, build, compose, and more
Compare two code snippets and highlight differences with syntax-aware line-by-line diff
Explore JSON data as an interactive tree with expand, collapse, search, and path copy
Encode and decode HTML entities - named, decimal, and hexadecimal formats
Generate MD5 hashes from any text or file using your browser native crypto API
Generate SHA-1 hashes from any text or file with instant copy output
Generate SHA-256 hashes from any text or file with one-click copy
Generate bcrypt password hashes with adjustable cost factor and salt rounds
Generate all possible permutations or arrangements of words and characters in text
Compare two hash outputs side by side to verify if they match or differ
Generate time-based UUID v1 values from a timestamp for sortable unique identifiers
Check images on a webpage for broken links and failed resource loading
Generate tints, shades, and tonal variations of any color for consistent design palettes
Convert numbers into human-readable words - great for invoices and checks
Calculate allowable downtime from an SLA percentage for year, month, and day
Write HTML and see a live rendered preview side by side in real time
Extract dominant colors from any image and get HEX, RGB, and HSL values
Detect if text contains placeholder lorem ipsum and flag it for removal
Check meta description length and quality for SEO readiness and click-through rates
Generate a visual word cloud from any text with customizable shape and colors
Detect repeated words, filler phrases, and unnecessary redundancy in text
Count lines, empty lines, and non-empty lines in any text instantly
Look up word definitions, synonyms, antonyms, and pronunciation guides
Convert JSON data into Python dictionaries or Pydantic model definitions
Format and beautify JavaScript, HTML, CSS, and JSON code with proper indentation
Validate XML syntax and catch errors with line numbers and detailed error messages
Convert plain CSS properties to Tailwind CSS utility classes instantly
Convert SQL SELECT queries or results into formatted JSON arrays
Check the registration age and expiry date of any domain name
Generate tonal variations of a color including warm, cool, muted, and vivid variants
Encode any file or text as a data URI for embedding in HTML, CSS, or XML
Check web content for WCAG accessibility issues including contrast, alt text, and heading structure
Analyze XML sitemaps for URL coverage, missing entries, and crawl budget optimization
Convert images to WebP format for high-quality web compression with smaller file sizes
Convert PNG images to JPEG format with adjustable quality and background transparency options
Highlight keywords and phrases in text with customizable colors and background styles
Generate all two and three-word combinations from a list of words for brainstorming
Analyze text sentiment and detect positive, negative, or neutral tone with scores
Check common English word pairings and phrases for natural-sounding writing
Generate catchy article titles from a topic with SEO-optimized headline options
Convert HTML code to JSX format with proper attribute casing and syntax
Convert plain CSS to styled-components template literal syntax for React
Follow URL redirect chains and see the full sequence of HTTP status codes
Generate Open Graph meta tags for social sharing with live preview
Extract top dominant colors from any image and get HEX and RGB values instantly
Convert both ways between HEX codes and CSS named colors
Check grammar, spelling, and punctuation with detailed explanations and one-click corrections
Query DNS records for any domain - A, AAAA, MX, TXT, and CNAME records
Generate OpenAPI/Swagger specs from JSON sample data for API documentation
Generate RSA, ECDSA, and Ed25519 SSH key pairs for server authentication
Validate JSON syntax and check for schema compliance with error line numbers
Reverse characters, words, or lines in any text with one-click copy output
Count character frequency in text for password analysis and cipher detection
Extract and alphabetically sort unique words from any text block
Generate random meaningful sentences for placeholder text and writing practice
Test and validate JWT tokens - decode header, payload, and verify signatures in real time
Resize photos to standard dimensions for social media, web, and mobile with preview
Preview how a webpage looks as a Google search result with title, URL, and description
Audit color contrast ratios for WCAG 2.1 AA and AAA compliance with suggested fixes
Convert between metric and imperial units for length, weight, and temperature
Convert between binary, decimal, hexadecimal, and octal number systems instantly
Analyze text for word count, sentence count, avg word length, character breakdown, and density
Count sentences, words, and characters with average sentence length analysis
Test and validate JWT tokens - decode header, payload, and verify signatures in real time
Analyze and optimize SEO meta tags, Open Graph, and Twitter Card tags with suggestions
Convert text to speech using your browser with adjustable voice, speed, and pitch
Remove EXIF metadata from images to protect privacy before sharing online
Validate UUID v1, v4, and v7 formats and check if a UUID string is properly formatted
Write markdown and see a live rendered preview side by side with export to HTML
Calculate subnet masks, network ranges, usable IPs, and wildcard masks from CIDR notation
Count inclusive addresses between two IPs and report the smallest enclosing CIDR, network, and broadcast
Adjust color saturation, vibrance, and lightness with a live preview and CSS output
Get a grammar quality score for your text with specific suggestions for improvement
Paste a regex pattern and get a plain English explanation of what it matches
Generate tints, shades, and tones of any color for consistent design system palettes
Advanced grammar and spell checker with style suggestions, tone detection, and one-click fixes
Detect lorem ipsum and placeholder text in documents with one-click removal suggestions
Estimate the reading grade level required to understand any text passage
Validate robots.txt syntax and check for common errors and misconfigurations
Fit any image into a square canvas with customizable background color
Generate hreflang tags for multi-language and multi-regional website versions
Convert between bytes, KB, MB, GB, TB, and PB with binary or decimal units
Convert decimal numbers to binary, hexadecimal, and octal formats instantly
Convert between HEX, RGB, RGBA, HSL, HSLA, HSV, and CMYK with a color picker, alpha control, and live preview
Check color contrast ratios and verify WCAG AA and AAA compliance for accessibility
Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine instantly
Convert between binary, decimal, hexadecimal, octal, and base-32 number systems
Inspect and decode JWT tokens without signature verification to view payload and expiration
Visualize regex matches with highlighted groups and real-time pattern testing
Build cron schedules visually with a point-and-click editor and plain English output
Preview how your page title and description appear in actual Google search results
Generate keyword variations and suggestions from any seed term — questions, prepositions, and modifiers
Evaluate JSONPath expressions against any JSON data and extract matched nodes instantly
Generate cURL commands from browser network requests with headers and body options
Convert temperatures between Celsius, Fahrenheit, and Kelvin instantly with formulas shown
Analyze word and phrase frequency in any text for SEO and content optimization insights
Apply ROT13 substitution cipher to encode or decode text instantly in your browser
Test regex patterns with match highlighting, capture groups, replacement preview, and common pattern library
Decode JWT tokens to inspect header, payload, and expiration without signature verification
Build cron schedules visually with a point-and-click editor and human-readable preview
Paste a regex and get a plain English explanation of what each part matches
Paste a cron expression and see the next 10 run times with a human-readable description
Detect passive voice constructions in text and suggest active voice rewrites for clearer writing
Estimate how long it takes to read any text based on average reading speed of 200 words per minute
Generate a frequency table showing how often each word appears in any text
Generate API authentication headers for Bearer, Basic, and AWS Signature schemes
Add borders of custom width, color, and style around any image with live preview
Rotate images by 90, 180, or 270 degrees or set a custom angle with one click
Flip images horizontally or vertically to mirror them with instant download
Analyze heading structure (H1-H6) on any webpage to check for proper hierarchy and SEO best practices
Check relative luminance and brightness of any color to predict contrast on light or dark backgrounds
Shift a color warmer (yellow/red) or cooler (blue) by adjusting its temperature value
Convert angles between degrees, radians, gradians, and arcminutes instantly
Scramble letters in any word to create fun anagrams and puzzles
Check whether word pairs form natural English collocations and get alternatives
Count paragraphs, sentences, and avg words per paragraph in any text
Generate sample CSV data from a header row with customizable columns and row count
Validate cron expressions and see the next 10 scheduled run times instantly
Normalize UUID formats between v1, v4, and v7 with uppercase or lowercase output
Check page title length and quality for Google search result display optimization
Convert between pascals, bars, PSI, atmospheres, and mmHg pressure units instantly
Convert between joules, calories, kilowatt-hours, and BTU energy units instantly
Generate strong, secure passwords instantly
Extract all URLs from any sitemap.xml file instantly
Convert Markdown to professional PDFs instantly
Unlock PDFs you have permission to access with browser-local password handling
Encode and decode Base64 strings instantly
Convert text between different cases: UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more
Encode and decode HTML entities
Minify CSS code to reduce file size
Write and preview Markdown in real-time
Convert between binary, decimal, hexadecimal, and octal number systems
Calculate tips and split bills among multiple people
Escape and unescape backslash characters in strings for JSON, JavaScript, regex, and other programming contexts
Format, beautify, and minify SQL queries with proper indentation and syntax highlighting
Convert AAC audio to WAV format
Add blank or existing pages to a PDF document at a chosen position
Add subtitle files to your videos
Add comments, highlights, and annotations to PDF files
Create workflow automations without coding
Generate a bill of sale document for vehicle or property sales
Add customizable borders to images
Create a professional business plan outline
Create charts and graphs from data
Create photo collages with multiple images
Merge multiple images into one
Crop images to any size and aspect ratio
Crop images into circles and ovals
Convert CSV files to Excel format
Convert CSV to XML format
Cut and trim video files
Detect the format and type of any image
Add text and image overlays to PDF files without changing the original content
Convert Excel spreadsheets to CSV format
Convert Excel spreadsheets to PDF format
Convert Excel data to XML format
Extract audio tracks from video files
Extract common embedded raster images from a PDF file
Turn text into PNG images with custom fonts
Convert animated GIF to animated PNG
Convert animated GIF to static JPG image
Convert GIF to PNG format
Convert images to black and white
Convert HEIC iPhone photos to JPG format
Convert HEIC images to PNG
Convert JPEG to PNG format
Convert JPEG to WebP format
Convert M4A to WAV audio format
Create memes instantly
Merge multiple PDF files into one document
Extract audio from MKV video files
Extract audio from MP4 videos
Convert MP4 video to WAV audio
Generate a free NDA document
Pixelate faces or objects in photos
Convert PNG to WebP format
Free online poll generator
Write professional press releases
Generate a privacy policy for your website
Edit and enhance profile pictures
Create purchase agreement contracts
Reorder and rotate PDF pages with drag-and-drop and arrow controls
Select and remove unwanted pages from a PDF while keeping at least one page
Resize images to any dimension
Rotate images by 90, 180, or custom angle
Sharpen blurry photos
Add a visual signature to a PDF by drawing, typing, or uploading a signature image
Split large CSV files into smaller parts
Split large Excel files into smaller spreadsheets
Convert SVG vector graphics to PNG images
Convert SVG vector graphics to JPEG images
Convert SVG vector graphics to WebP images
Trace bitmap logos to vector format
Fix blurry photos
Remove an opening password from PDFs you have permission to access using browser-local processing
Add a visible text or image watermark to every page of a PDF
Convert WebP to JPEG format
Convert WebP to PNG
Create ZIP archives from multiple files
Encode Unicode characters to escape sequences and decode escaped strings back to text
Convert internationalized domain names to Punycode (xn--) and back
Remove multiple spaces, tabs, and line breaks from text
Calculate dots per inch and pixels per inch for print and screen resolution
Spin a customizable wheel to pick random names or items from a list
Generate Universally Unique Lexicographically Sortable Identifiers for distributed systems
Generate CSS box-shadow code for drop shadows, inner shadows, and colored shadows
Turn any emoji into a favicon PNG instantly
Extract and download favicons from multiple URLs at once in one click
Generate HMAC digests for any text using SHA-256, SHA-1, or MD5 with a secret key
Generate cryptographically secure random strings, numbers, UUIDs, and bytes in your browser
Escape or unescape special characters in JSON strings for safe embedding and storage
Convert CSS class names between BEM, kebab-case, camelCase, and SCSS conventions
Minify HTML by removing whitespace, comments, and optional tags for faster page loads
Generate random numeric PINs of any length for secure codes, OTPs, and access keys
Generate Docker Compose YAML files for multi-container applications with common templates
Compare two UUIDs to check equality and sort them chronologically by timestamp
Check text for duplicate and near-duplicate content with similarity scoring
Find repeated phrases and word patterns in any text block for cleaner writing
Count filler words like actually, basically, and really to improve speaking and writing
Build custom JWT or bearer tokens with header, payload, and signature editing
Convert code into visual flowcharts and sequence diagrams for documentation
Visualize sorting, searching, and graph algorithms step by step with animation
Calculate new image dimensions from a percentage scale or target size
Visually edit and test robots.txt rules with live crawler simulation
Generate HEX and RGB colors with custom alpha transparency for overlays and borders
Decode Base64 data URLs back to image files for download or inspection
View and debug HTTP request and response headers for any URL with timing breakdown
Analyze headlines for word count, emotional impact, and SEO keyword density
Check heading hierarchy, paragraph length, and list usage for well-structured content
Check text for character variety including uppercase, lowercase, digits, and special symbols
Generate API documentation from endpoint definitions with request/response examples
Format and prettify SQL queries with keyword highlighting and indentation
Compare two UUIDs to check version, variant, timestamp, and lexicographic order
Check image width, height, and file size without uploading - supports JPEG, PNG, WebP
Debug Open Graph and Twitter Card meta tags for any URL with detailed validation
Generate canonical URL tags for webpages to prevent duplicate content SEO issues
Remove background from images using browser-based processing - no upload required
Convert bytes to KB, MB, GB, TB with binary (1024) or decimal (1000) base
Convert between square meters, acres, hectares, square feet, and other area units
Convert between hertz, kilohertz, megahertz, gigahertz, and RPM instantly
Convert between newtons, dynes, pounds-force, and kilogram-force units
Generate random colors with HEX, RGB, HSL values and one-click copy to clipboard
Add or subtract time intervals - calculate end time from start plus duration, or find the gap between two times
Calculate the difference between two Unix timestamps or dates with breakdown
Calculate PPI and DPI for images at different dimensions and print sizes
Strip HTML tags and extract clean plain text from any web content instantly
Generate realistic fake addresses for testing with street, city, state, and zip
Generate random MAC addresses in OUI, EUI-48, and EUI-64 formats for testing
Check spelling errors in any text and get one-click corrections instantly
Analyze text complexity with syllable count, sentence length, and vocabulary score
Remove duplicate lines, words, or sentences from text while preserving order
Debug API endpoints with custom headers, body, and authentication for testing
Encode HTML attributes for safe use inside element tags and values
View images encoded as Base64 data URLs directly in your browser
Strip EXIF and metadata from photos to protect privacy before sharing online
Analyze SEO title length and quality for Google search results click-through rates
Simulate how any webpage appears in Google search results with pixel-perfect preview
Check robots.txt files for crawler directives and blocked paths with validation
Calculate relative luminance of any color for WCAG contrast ratio compliance
Convert between length, weight, temperature, speed, and volume in one tool
Convert octal numbers to decimal, binary, and hexadecimal instantly
Check URL slug health for duplicate content issues and SEO-friendly structure
Detect duplicate URLs in a list and suggest canonical versions for SEO
Simulate how websites look on screens with different DPI and pixel densities
Convert HTML tables to JSON arrays with automatic header detection
Shuffle sentences within paragraphs or across a whole text randomly
Sort text lines alphabetically, by length, reverse order, or remove duplicates in one click
Resize images to exact pixel dimensions with aspect ratio lock and batch support
Build cron schedules visually with point-and-click editor and human-readable output
Calculate the Flesch-Kincaid readability grade level and reading ease score for any text
Build regex patterns visually from common use cases like emails, phones, URLs, and dates
Explain what a cron schedule means in plain English and show the next run times
Create polished 1200×630 blog covers, banners, and Open Graph images with editable copy, gradient presets, and one-click PNG download
Generate a contrast matrix for multiple colors to check WCAG AA and AAA compliance
Convert binary numbers to decimal and vice versa with step-by-step calculation display
Generate CSS @keyframes animations with a visual editor - control timing, iteration, and easing curves
Convert between decimal notation and scientific notation with step-by-step calculation display
Convert cURL commands to Python requests code with headers, params, and body handling
Convert cURL commands to JavaScript fetch or Axios code with proper async/await syntax
Change DPI and resolution of images for print with proper aspect ratio preservation
Generate custom CSS cursor values with URL images, fallback cursors, and CSS output
Generate markdown tables from JSON arrays with customizable alignment and header formatting
Check HTTP status codes for multiple URLs in bulk and identify issues quickly
Generate lighter, darker, and tinted variations of any color for design system palettes
Resize multiple images at once to standard dimensions with aspect ratio lock
Analyze keyword frequency and density in text or HTML content for SEO optimization
Calculate percentage increase or decrease between two values with direction and magnitude
Resize images directly in your browser with no upload required
Pick random items from a list
Calculate sale prices, percentage discounts, and savings instantly with original and discounted price
Find items that are unique to each list - show items in list A but not B and vice versa
Generate all possible two-word and three-word combinations or permutations from a list of words
Calculate your reading speed in words per minute and estimate completion time for any text
Escape special regex characters in text so they are treated as literal characters in patterns
Encode any file to Base64 data string for embedding or decoding Base64 back to a file
Model what-if scenarios - change variables and see how results scale with instant recalculation
Split a bill among multiple people with customizable tips, tax, and round-up options
Find valid English words from a string of letters with pattern and length filters
Convert text to Title Case with options for small words, numbers, and custom exceptions
Generate shell commands from plain English descriptions for bash, zsh, and fish shells
Download the favicon from any website URL in ICO, PNG, and SVG formats
Calculate Body Mass Index from height and weight in metric or imperial units
Extract all sentences from any text block with automatic numbering and export options
Generate a specific number of lorem ipsum words for placeholder content in design mockups
Detect commonly confused homophones like there/their/theyre and suggest the correct word
Generate API documentation from endpoint definitions with request/response examples and parameter tables
Convert JSON data into TypeScript type definitions with optional strict null and readonly modifiers
Generate PNG favicon icons in standard sizes from any image or emoji with transparent background
Extract a 5-color palette from any image and get HEX, RGB, and HSL values for each swatch
Convert between cooking measurements - cups, tablespoons, teaspoons, grams, milliliters, and ounces
Convert hexadecimal numbers to decimal and binary with step-by-step calculation breakdown
Convert decimal numbers to hexadecimal and binary with instant result and copy button
Estimate how long it takes to read any text based on average reading speed
Generate random paragraphs with customizable word count and topic for placeholder content
Build cURL commands with custom method, headers, body, and authentication
Check DNS records for any domain including A, MX, CNAME, TXT, and NS records
Add, subtract, multiply, and divide fractions with step-by-step solutions
Generate random alphanumeric IDs, coupon codes, and referral codes in bulk
Calculate Flesch-Kincaid, SMOG, ARI, and Coleman-Liau readability scores for any text
Generate favicon icons from text, emoji, or images with ICO, PNG, and SVG output
Simulate how a webpage appears in Google search results with title, description, and URL preview
Check foreground and background color contrast for WCAG AA and AAA compliance with suggestions
Convert between length, weight, temperature, speed, area, and volume units instantly
Sort text lines alphabetically, by length, numerically, or in random order
Test regex patterns with live match highlighting, capture groups, and replacements
Decode JWT tokens and view header, payload, expiration, and signature info
Turn any tweet or text into a styled, shareable PNG image
Pick colors from a visual wheel and get HEX, RGB, HSL, and CSS values instantly
Check foreground and background color contrast for WCAG AA and AAA compliance
Convert between binary, hexadecimal, and decimal number systems instantly
Render Jupyter .ipynb notebook files as HTML preview
Format and pretty-print Jupyter notebook (.ipynb) JSON with proper indentation and cell sorting
Remove all outputs, execution counts, and metadata from Jupyter .ipynb files
Automatically apply the Oxford comma rule to any list of items
Visualize nested JSON relationships as nodes and edges, highlight missing references, and export relationship maps for debugging