137 free tools — search or filter by category.
Generate JSON-LD structured data for local businesses
Create optimized title tags & meta descriptions
Analyze keyword frequency & density in your content
Count words, characters, sentences & reading time live
Convert text between uppercase, lowercase, title & more
Convert titles into clean, SEO-friendly URL slugs
Build valid robots.txt files with a visual editor
Build campaign URLs with UTM tracking parameters
Extract & preview OG tags from any HTML source
Encode or decode text to and from Base64
Encode or decode URLs and query strings
Convert special characters to HTML entities and back
Generate placeholder text for designs and mockups
Format, validate, and minify JSON data
Generate 301/302 redirect rules for .htaccess
Generate hreflang tags for multilingual websites
Convert colors between HEX, RGB, and HSL formats
Convert any HTML markup into clean, readable Markdown instantly
Transform Markdown text into valid, semantic HTML code
Turn CSV spreadsheet data into structured JSON arrays or objects
Flatten JSON arrays into downloadable CSV spreadsheet format
Generate styled HTML tables from raw CSV or spreadsheet data
Convert JSON data into clean, human-readable YAML format
Parse YAML configuration files into structured JSON data
Transform XML documents into equivalent JSON data structures
Convert tab-separated values into standard comma-separated CSV format
Build perfectly aligned Markdown tables with a visual editor
Convert any number into its written English word equivalent
Convert between Arabic numbers and Roman numerals both ways
Encode text to binary or decode binary strings back to text
Convert between plain text and hexadecimal encoded strings
Escape and unescape Unicode characters for code and data
Turn plain text into large ASCII art banner lettering
Encode text to Morse code or decode dots and dashes
Spell out text using the NATO phonetic alphabet system
Generate MD5 hash checksums from any text or string input
Generate secure SHA-256 hash digests from any text input
Generate SHA-1 hash digests from any text string input
Decode and inspect JSON Web Token headers, payloads, and signatures
Generate unique UUIDs in version 4 format with one click
Create strong, random passwords with customizable length and characters
Detect and identify the algorithm behind any hash string
Hash any string with multiple algorithms at once for comparison
Reverse text by characters, words, or lines in one click
Sort lines of text alphabetically, numerically, or by length
Remove duplicate lines from text while preserving original order
Strip all blank and empty lines from your text instantly
Add or remove line numbers from any block of text
Find and replace text with support for regex patterns
Repeat any text string a specified number of times
Add custom prefix or suffix text to every line at once
Extract all email addresses from any block of text
Pull all URLs and links from any text or HTML content
Remove extra spaces, tabs, and trailing whitespace from text
Compare two texts and highlight every difference between them
Escape and unescape strings for JSON, HTML, URLs, and more
Convert paragraphs or comma-separated text into formatted lists
Remove repeated words from text while keeping original flow
Truncate text to a specific length with smart word boundaries
Generate valid FAQPage structured data JSON-LD for Google rich results
Create BreadcrumbList structured data for search navigation display
Build Article structured data for news and blog post rich results
Create Product structured data with pricing and availability for search
Generate Event structured data for dates, venues, and ticket info
Build Review and AggregateRating structured data for star ratings
Create valid XML sitemaps from a list of URLs for search engines
Analyze text readability with Flesch-Kincaid and other scoring methods
Check if your page titles fit within Google search result display
Analyze HTML heading hierarchy for proper SEO structure
Scan HTML for missing or empty image alt text attributes
Extract and categorize all links from HTML with anchor text
Analyze anchor text distribution and patterns across your links
Generate Open Graph and Twitter Card meta tags for social sharing
Compress CSS code by removing whitespace and unnecessary characters
Format and indent messy or minified CSS into readable code
Design linear and radial CSS gradients with a visual editor
Create CSS box shadows visually with real-time preview
Design custom CSS border radius values with visual controls
Experiment with CSS Flexbox properties using a visual builder
Convert between px, rem, em, vh, vw, and other CSS units
Generate harmonious color palettes from any base color
Check WCAG color contrast ratios for accessibility compliance
Design CSS text shadows with live preview and multiple layers
Build reliable CSS font-family stacks with system font fallbacks
Create pure CSS triangles using the border trick technique
Build CSS keyframe animations with a visual timeline editor
Create frosted glass UI effects with CSS backdrop-filter
Compress HTML by removing whitespace, comments, and redundant code
Format and indent messy or minified HTML into readable code
Compress JavaScript code by removing whitespace and shortening variables
Format and indent minified or messy JavaScript into clean code
Format and beautify raw SQL queries with proper indentation
Test and debug regular expressions with real-time match highlighting
Parse cron expressions into human-readable schedule descriptions
Compare two code files with syntax-highlighted side-by-side diff
Click any value in JSON to get its exact path expression
Turn code snippets into beautiful shareable screenshot images
Convert between Unix timestamps and human-readable date formats
Format dates into any pattern using standard format tokens
Convert times between any world timezones with daylight saving
Calculate exact age in years, months, days from any birthdate
Calculate the exact duration between any two dates
Create a live countdown timer to any future date and time
Calculate percentages, increases, decreases, and ratios quickly
Calculate sale prices and savings from any discount percentage
Convert between length, weight, volume, temperature, and more units
Calculate and convert aspect ratios for images and video
Generate random numbers within any range with various options
Convert numbers between binary, octal, decimal, and hexadecimal
Look up HTTP status codes with descriptions and usage examples
Search MIME types by file extension or content type string
Search, browse, and copy emojis by name, keyword, or category
Parse and decode user agent strings into browser and OS details
Generate a customizable privacy policy for your website or app
Create terms of service agreements for your website or application
Generate a cookie policy explaining your site cookie usage
Create legal disclaimers for websites, blogs, and applications
Preview how URLs appear when shared on Facebook, Twitter & LinkedIn
Preview any URL at mobile, tablet, and desktop viewport sizes
Transform JSON data into well-formed XML markup
Convert CSV data into formatted Markdown table syntax
Compare two texts and highlight changes at the word level
Calculate network address, broadcast, and host range from IP/CIDR
Calculate Unix file permissions with interactive checkboxes
Build cron schedule expressions with a visual interface
Generate .htaccess rules for redirects, HTTPS, caching & security
Generate nginx server block configurations visually
Build meta robots tags with index, follow, and advanced directives
Generate canonical link tags for single or multiple pages
Create and preview Twitter/X Card meta tags with live preview
Create custom SVG favicons from emoji or text with color options
Count and rank every word in your text by frequency
Listen to text read aloud using browser speech synthesis
Generate QR codes from any text, URL, or data
Convert SVG code into CSS background-image data URIs
Generate TypeScript interfaces from JSON data automatically
Create custom placeholder images with text using Canvas API