HTML Validator
Validate HTML markup for syntax errors, accessibility issues, and SEO recommendations. Comprehensive checking for web standards compliance and best practices.
Validation Options:
What This Validator Checks:
Syntax Validation
- • Proper tag nesting and closure
- • Required attributes (src, alt, etc.)
- • Duplicate ID detection
- • Document structure validation
Accessibility & SEO
- • Image alt text validation
- • Form label associations
- • Heading hierarchy
- • Meta tags and title optimization
All Tools
Case Converter
Convert text between different case styles
Text Formatter
Format and beautify your text
Text Replacer
Find and replace text patterns
Text Sorter
Sort text lines alphabetically
Text Randomizer
Randomize the order of your text lines
Diacritics Remover
Remove accents and diacritical marks
Fancy Font Generator
Convert text to stylized fonts
Text Cleaner
Remove extra spaces and clean up text
Text Reverser
Reverse text characters or words
Line Numberer
Add line numbers to your text
Text Splitter
Split text by delimiters or patterns
Text Joiner
Join multiple text lines with delimiters
Text Duplicator
Duplicate text multiple times
Word Wrapper
Wrap text at specified line length
HTML Encoder
Encode and decode HTML entities
URL Encoder/Decoder
Convert text to URL-encoded format and back
Base64 Converter
Convert text to and from Base64
ASCII Converter
Convert text to ASCII and back
Morse Code Converter
Convert text to Morse code and back
Lorem Ipsum Generator
Generate placeholder text for your designs
Password Generator
Generate secure random passwords
QR Code Generator
Generate QR codes from text or URLs
Hash Generator
Generate various hash values
Barcode Generator
Generate various types of barcodes
SVG Code Generator
Create simple SVG graphics and code
WiFi QR Code Generator
Generate QR codes for WiFi networks
Random Data Generator
Generate fake data for testing
Color Palette Generator
Generate harmonious color schemes
UUID Generator
Generate unique identifiers (UUIDs)
Test Credit Card Generator
Generate test credit card numbers
Name Generator
Generate names for people, businesses, and more
Meme Text Generator
Generate popular meme captions and formats
Startup Idea Generator
Generate detailed startup ideas with market analysis
URL Parser
Parse URLs and extract query parameters
HTTP Status Checker
Check HTTP status codes and response headers
DNS Lookup
Perform DNS queries and lookups
SSL Certificate Checker
Check SSL certificate details and expiration
Website Speed Test
Test website performance and Core Web Vitals
Domain WHOIS Lookup
Look up domain registration information
Network Ping Tool
Test network connectivity and latency
Port Scanner
Scan network ports and services
Unit Converter
Convert between different units
Color Converter
Convert between color formats
Roman Numeral Converter
Convert between Roman and Arabic numerals
Timestamp Converter
Convert between Unix timestamps and dates
Image Converter
Convert between JPEG and PNG formats
Tax Calculator
Calculate federal and state income taxes
HTML Table Generator
Create responsive HTML tables visually
CSS Gradient Generator
Create beautiful CSS gradients visually
JSON Formatter
Format, validate and beautify JSON data
CSS Minifier
Minify CSS code to reduce file size
JavaScript Minifier
Minify JavaScript code for production
HTML Minifier
Minify HTML code to optimize loading
Regex Tester
Test and validate regular expressions
SQL Formatter
Format and beautify SQL queries
XML Formatter
Format and validate XML documents
YAML Formatter
Format and validate YAML documents
Code Beautifier
Beautify and format various programming languages
HTML Validator
Validate HTML markup for errors
CSS Validator
Validate CSS syntax and properties
API Tester
Test REST APIs with different methods
JWT Decoder
Decode and verify JSON Web Tokens
Color Picker
Pick colors and get hex, RGB, HSL values
Lorem Ipsum Generator
Generate placeholder text for designs
Timestamp Converter
Convert between Unix timestamp and human dates
URL Parser
Parse and analyze URL components
Cron Job Generator
Generate cron expressions for scheduled tasks
.htaccess Generator
Generate Apache .htaccess rules
Robots.txt Generator
Generate robots.txt files for SEO
Meta Tag Generator
Generate SEO meta tags for websites
SVG Optimizer
Optimize SVG files to reduce size