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Add Line Numbers Text Add line numbers to text or code. → Age Calculator Date & Time Calculate age from birth date in years, months, and days. → Area Converter Unit & Calculator Convert between m², ft², acres, hectares and more. → ASCII / Unicode Converter Developer Convert character to code and code to character. → Aspect Ratio Calculator Unit & Calculator Calculate aspect ratio and dimensions. → Barcode Generator Generator Create barcodes (EAN-13, Code 128, QR) as image. → Base64 Encoder / Decoder Developer Encode or decode Base64 strings instantly. → Base64 to Image Developer Decode base64 image and view or download. → Bcrypt Generator Security Hash and verify passwords with bcrypt. → Caesar Cipher Security Encode and decode with Caesar cipher (shift). → Case Converter Text Convert text to UPPERCASE, lowercase, Title Case, or Sentence case. → Certificate (PEM) Decoder Developer Decode PEM certificate and view subject, issuer, dates. → Character & Byte Count Text Count characters and UTF-8 bytes. → Color Converter Developer Convert between HEX, RGB, and HSL with live preview. → Color Palette Generator Generator Generate harmonious color palettes from any base color. → Countdown Timer Date & Time Countdown to a date or use stopwatch. → Cron Expression Explainer Developer Decode cron expressions and see next run times. → Cron Expression Generator Developer Build cron schedule from minute, hour, day, month, weekday. → CSS Box Shadow Generator Developer Create box-shadow CSS with live preview. → CSS Gradient Generator Developer Create linear-gradient CSS from colors and direction. → CSS Minifier / Beautifier Developer Minify or beautify CSS code instantly. → CSV to JSON Developer Convert CSV to JSON with optional headers. → Data Size Converter Unit & Calculator Convert between bytes, KB, MB, GB, TB and more. → Day of Week Date & Time Find which day of the week a date falls on. → Days Between Dates Date & Time Calculate the number of days between two dates. → Discount Calculator Unit & Calculator Calculate sale price and savings from original price and discount %. → Email Extractor Text Extract email addresses from text. → Env File Parser Developer Parse .env to JSON or key-value list. → Fake Data Generator Generator Generate fake names, addresses, phones for testing. → Fake Email Generator Generator Generate random fake email addresses for testing. → Favicon Generator Generator Create a favicon from a letter or emoji. → File Hash Security MD5, SHA-1, SHA-256, SHA-512 checksum of any file. → Find and Replace Text Search and replace text with literal or regex. → Fraction Calculator Unit & Calculator Add, subtract, multiply, divide fractions and convert to decimal. → Gitignore Generator Developer Generate .gitignore from OS and language templates. → GZIP Compress / Decompress Developer Compress or decompress text with GZIP. → Hash Generator Security Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text. → HMAC Generator Security Generate HMAC-SHA256 from message and key. → HTML Beautifier Developer Format and beautify HTML code. → HTML Encoder / Decoder Developer Encode or decode HTML entities. → HTML Tag Remover Text Strip HTML tags and get plain text. → HTML to Markdown Developer Convert HTML to Markdown instantly. → HTTP Headers Parser Developer Parse raw HTTP headers to a table. → Image Compressor Generator Compress images in your browser — no upload to any server. → Image Format Converter Image Convert images to PNG, JPEG, or WebP. → Image Resizer Image Resize images by width and height. Keep aspect ratio. → Image to Base64 Image Convert an image to Base64 data URL. → Invisible Character Text Copy zero-width and invisible Unicode characters. → JavaScript Formatter Developer Beautify and minify JavaScript code. → JSON Diff Developer Compare two JSON objects and see differences. → JSON Formatter Developer Format, validate and beautify JSON data. → JSON Key Sorter Developer Sort JSON object keys alphabetically. → JSON to CSV Developer Convert JSON arrays to CSV with headers. → JSON to XML / XML to JSON Developer Convert between JSON and XML. → JSON Validator Developer Validate JSON syntax and format. → JWT Decoder Security Decode and inspect JWT tokens (header and payload). → JWT Generator Developer Create HS256 JWT from payload and secret. → Keyword Density Checker Text Word frequency and density for SEO. → Length Converter Unit & Calculator Convert between km, miles, m, ft, in, cm, and more. → Lorem Ipsum Generator Generator Generate placeholder text for mockups and wireframes. → Markdown Preview Developer Preview Markdown as HTML in real time. → Markdown Table Generator Developer Convert CSV or data to Markdown table. → Meta Tag Generator Developer Generate HTML meta tags for SEO and social sharing. → Morse Code Generator Generator Encode and decode text to Morse code. → Newline Converter Text Convert line endings between LF, CRLF, and CR. → Number Base Converter Developer Convert between decimal, hex, binary, and octal. → OG Image Generator Generator Create Open Graph social card images (1200×630). → Passphrase Generator Security Generate memorable passphrases from random words. → Password Entropy Calculator Security Calculate password entropy and bit strength. → Password Generator Security Generate strong, random passwords in one click. → Password Strength Checker Security Check how strong your password is and get improvement tips. → PDF Merger Developer Merge multiple PDF files into one online. → Percentage Calculator Unit & Calculator What is X% of Y? What % is X of Y? → Pixel to Rem Converter Developer Convert px to rem and em with base font size. → Punycode Converter Developer Encode or decode IDN domain names. → QR Code Decoder Image Decode QR codes from images. → QR Code Generator Generator Create QR codes for any URL or text. → Random Color Generator Generator Generate random colors in HEX, RGB, and HSL. → Random Date Generator Generator Generate random dates in a range. → Random Name Generator Generator Generate random names for characters, projects, or testing. → Random Number Generator Generator Pick random numbers between min and max. → Random String Generator Generator Generate random strings with letters, numbers, and symbols. → Reading Time Calculator Text Estimate reading time from word count. → Redirect Checker Developer Check HTTP status and redirect location. → Regex Escape Developer Escape a string for use in regex. → Regex Tester Developer Test regular expressions with live matches and groups. → Remove Duplicate Lines Text Remove duplicate lines from text and keep unique ones. → Remove Line Breaks Text Remove line breaks and join lines into one. → Reverse Text Text Reverse text by characters or by words. → Roman Numeral Converter Unit & Calculator Convert numbers to Roman numerals and back. → ROT13 Decoder Security Encode and decode text with ROT13. → Semver Comparator Developer Compare two semantic versions. → Shuffle Lines Text Randomize the order of lines in text. → Slug Generator Text Convert any text into a URL-friendly slug. → Sort Lines Text Sort lines alphabetically (A–Z or Z–A). → Speed Converter Unit & Calculator Convert km/h, mph, m/s, knots and more. → SQL Escape Security Escape strings for safe use in SQL. → SQL Formatter Developer Format and beautify SQL queries. → Temperature Converter Unit & Calculator Convert °C, °F, and Kelvin. → Text Diff Text Compare two texts and highlight differences. → Text Line Wrapper Text Wrap text at a character limit per line. → Text to Binary Text Convert text to binary and binary back to text. → Text Trim Text Trim and normalize whitespace in text. → Timestamp Converter Date & Time Convert Unix timestamp to date and vice versa. → Timezone Converter Date & Time Convert date and time between timezones. → Unit Converter Unit & Calculator Length, weight, temperature, and data size in one page. → URL Encoder / Decoder Developer Encode or decode URL components (percent-encoding). → URL Parser Developer Break down URL into protocol, host, path, query, hash. → User-Agent Parser Developer Parse and decode User-Agent strings. → UUID Generator Generator Generate random UUIDs (v4) instantly. → UUID Validator Developer Check if a string is a valid UUID (v4 or v1). → Volume Converter Unit & Calculator Convert liters, gallons, ml, fl oz, cups and more. → Weight Converter Unit & Calculator Convert between kg, lbs, oz, and grams. → Word Counter Text Count words, characters, sentences and paragraphs instantly. → XML Formatter Developer Format and minify XML with pretty print. → XML Validator Developer Validate XML syntax online. → YAML to JSON / JSON to YAML Developer Convert between YAML and JSON instantly. → YAML Validator Developer Validate YAML syntax online. →