📝 Word Counter
Count words and characters (including spaces)
🔐 Base64 Tool
Encode / Decode Base64 strings
🔑 Password Generator
Generate secure random password (12 chars)
🎲 Random Number
Generate random integer (0 – 999,999)
📅 Age Calculator
Calculate exact age from birth date
⚖️ BMI Calculator
Body Mass Index (kg, cm)
📱 QR Code Generator
Instant QR code from any text or URL
💻 Text ↔ Binary
Convert text to binary and binary back to text
🔗 Slug Generator
SEO-friendly URL slug from title
📄 Line Counter
Count lines in a text block
📧 Email Validator
Check if email format is valid
🌐 URL Extractor
Extract all URLs from any text
🧮 Advanced Calculator
Evaluate expressions (+, -, *, /, **, ^, sqrt, etc)
🔒 MD5 Hash
Generate MD5 checksum (fingerprint)
🔐 SHA-256 Hash
Cryptographic SHA-256 digest
📋 JSON Formatter
Pretty-print & validate JSON
🔓 JWT Decoder
Decode JSON Web Token (header+payload)
⏱️ Unix Timestamp
Convert timestamp ↔ human date
🎨 HEX to RGB
Convert color hex (#RRGGBB) to RGB
🎨 RGB to HEX
Convert RGB (r,g,b) to hex
🔠 Case Converter
UPPERCASE / lowercase / Title Case
🔄 Palindrome Check
Check if text reads the same backwards
📊 Percentage Calc
What is X% of Y? / X is what % of Y?
💰 Simple Interest
Principal * rate * time / 100
🌡️ Temperature
Celsius ↔ Fahrenheit
🔄 Text Reverser
Reverse entire string
🧹 Remove Duplicate Lines
Keep unique lines from text
🆔 UUID Generator
Generate RFC4122 UUID v4
🌍 IP Validator
Validate IPv4 address format
✍️ Lorem Ipsum
Generate dummy placeholder text
🔏 ROT13 Cipher
Apply ROT13 encoding (basic cipher)
🔧 HTML Escape
Convert < & > to HTML entities
📡 Text to Morse
Convert text to Morse code (A-Z)
📊 Char/Letter Counter
Count letters, digits, spaces, special chars
🛡️ Password Strength
Evaluate password security (weak/medium/strong)
🏛️ Roman Numeral
Convert number (1-3999) to Roman
🔖 Advanced Slug
SEO slug with custom separator
🌐 URL Encoder/Decoder
Percent-encoding for URLs
🔢 Hex to String
Convert hexadecimal to readable text
🔢 String to Hex
Convert text to hexadecimal representation
📆 Leap Year Check
Check if a year is leap year
🔢 Prime Tester
Check if number is prime
🧮 Factorial
Calculate n! (factorial)
🔤 Vowel/Consonant
Count vowels and consonants in text
📈 Average of Numbers
Comma-separated numbers average
🔐 SHA-1 Hash
Generate SHA-1 digest
💳 Luhn Algorithm
Validate credit card number (Luhn check)
🔣 Text → ASCII
Convert each char to ASCII decimal
😶 Emoji Remover
Strip emojis from text
📝 Markdown to HTML
Convert # heading and **bold**
🔢 Binary to Decimal
Convert binary string to decimal number
🔢 Decimal to Binary
Convert decimal to binary
🔄 Atbash Cipher
A↔Z, B↔Y transformation
🔑 Caesar Cipher (ROT3)
Shift letters by 3 positions
📏 String Length
Count characters including spaces
🎨 RGB to HSL
Convert RGB to HSL approximate
📊 Word Frequency
Count occurrences of each word
🧹 Trim Spaces
Remove double spaces & trim edges
🔒 MD4 Hash
MD4 digest (legacy)
🔹 Base58 Encode
Simple base58 encoding (demo)
🏠 Domain Extractor
Extract root domain from full URL
🔍 Query Parser
Parse URL query parameters
🔑 HMAC-SHA256
Hash-based message authentication code