Your online toolbox.
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Check if an email address is real and deliverable — syntax, domain, and MX record checks in one click.

Paste any IBAN and instantly verify its checksum, format, and bank identification — before sending a payment.

Verify a BIC or SWIFT code to confirm the bank and country before an international transfer.

Validate any phone number worldwide, identify the country and carrier, and confirm the correct format.

Look up and verify any EU VAT number against the VIES database to confirm a business is registered.

Verify and standardize postal addresses across 240+ countries to make sure they actually exist.

Parse, validate, and inspect URLs — check protocol, domain, path, and query parameters.

Validate IPv4 and IPv6 addresses, check ranges, subnets, and geolocation data.

Test password strength in real-time — entropy, common patterns, and breach database checks.

Validate, format, and convert between JSON, YAML, and XML with instant syntax highlighting.

Upload a CSV file and run sequential validation checks — encoding, headers, rows, quoting, and data types.

Verify card numbers using the Luhn algorithm and detect card type.

Validate YAML syntax with line-level error reporting.

Validate HTML markup for syntax errors, unclosed tags, and deprecated elements.

Check CSS syntax for property errors, unclosed brackets, and malformed selectors.

Validate XML documents for well-formedness, unclosed tags, and encoding issues.

Check SQL query syntax with support for MySQL, PostgreSQL, and SQLite dialects.

Validate Markdown syntax for broken links, unclosed emphasis, and formatting issues.

Validate UUID format, detect version (v1-v5), variant, and identify nil/max UUIDs.

Verify ISBN-10 and ISBN-13 check digits and convert between formats.

Validate EAN-8, EAN-13, and UPC-A barcode numbers with check digit verification.

Validate MAC address format and look up the vendor via OUI database.

Validate semantic version strings per semver.org spec and compare versions.

Validate domain names for RFC compliance with IDN and punycode support.

Validate postal/ZIP codes against country-specific format patterns.

Verify 15-digit IMEI numbers with Luhn check digit validation.

Validate Vehicle Identification Numbers with check digit, manufacturer, and year decode.

Validate International Securities Identification Numbers with Luhn check digit.

Verify International Standard Serial Numbers with modulo-11 check digit.

Validate Legal Entity Identifiers with MOD 97-10 check digit verification.

Validate dates and times in ISO 8601, RFC 2822, Unix timestamp, and more formats.

Validate HEX, RGB, HSL, and HWB color codes with preview swatch.

Validate JSON Lines format with per-line error reporting and statistics.

Look up MIME types by file extension or find extensions for a MIME type.

Validate Content Security Policy headers with security risk detection.

Validate robots.txt files for syntax errors and directive conflicts.

Validate XML sitemaps for schema compliance, URLs, and metadata.

Validate JWT tokens for structure, claims, expiration, and algorithm.

Decode and inspect JSON Web Tokens — view header, payload, and verify signature integrity.

Generate MD5, SHA-1, SHA-256, and other hash digests from any text or file input.

Encode and decode Base64 strings instantly — supports text, files, and URL-safe variants.

Write and test regular expressions with real-time matching, capture groups, and explanation.

Parse and validate cron expressions — see the next scheduled runs in a human-readable format.

Write Markdown and see a live-rendered preview — supports GFM, tables, and syntax highlighting.

Format, minify, and validate JSON with configurable indentation, depth stats, and error highlighting.

Compare two texts and see additions, deletions, and changes highlighted — line, word, or character level.

Look up any HTTP status code — meaning, usage, and when to use each response code.

Format, validate, and minify XML data with configurable indentation and error reporting.

Beautify and minify SQL queries with support for MySQL, PostgreSQL, T-SQL, and more.

Beautify and minify HTML, CSS, and JavaScript code instantly with configurable options.

Calculate IPv4 subnet details — network, broadcast, hosts, masks from CIDR notation.

Generate HTML meta tags, Open Graph, and Twitter Card tags with live SERP and social previews.

Compare two JSON objects and see structural differences — added, removed, and changed keys.

Generate time-based one-time passwords from Base32 secrets. Parse otpauth:// URIs with countdown timer.

See your public IP address and detailed browser, screen, and system information instantly.

Search and copy emojis. Unicode code points, HTML entities, and shortcodes included.

Minify CSS code by removing whitespace, comments, and redundant syntax for smaller file sizes.

Minify HTML by removing whitespace, comments, and optional tags to reduce page load times.

Minify JavaScript code with variable mangling, dead code removal, and compression.

Minify JSON by removing all whitespace and formatting for compact data transfer.

Format and validate YAML with configurable indentation, sorting, and error detection.

Check foreground and background color contrast against WCAG 2.1 AA and AAA accessibility standards.

Analyze text readability with Flesch-Kincaid scores, grade levels, and detailed text statistics.

Parse any URL into its components — protocol, host, port, path, query parameters, and hash.

Search and replace text with regex support, case-sensitive matching, and batch processing.

Escape and unescape strings for JSON, HTML, SQL, URL, and more formats.

Strip extra spaces, tabs, line breaks, and trailing whitespace from text.

Repeat any text or string a specified number of times with custom separators.

Remove HTML tags, fix encoding issues, normalize whitespace, and clean up text.

Apply ROT13 cipher to encode or decode text instantly.

Convert between symbolic and numeric Unix file permission formats.

Hash passwords with bcrypt and verify existing hashes online.

Create HMAC signatures using SHA-256, SHA-384, SHA-512, and more.

Validate TOML syntax and format your configuration files.

Create and format Markdown tables with a visual editor.

Evaluate JSONPath expressions against JSON data and see results instantly.

Validate JSON data against a JSON Schema definition.

Create and sign JSON Web Tokens with custom claims and algorithms.

Encode and decode text using Base32 (RFC 4648) with padding toggle and Base32Hex variant.

Parse any user agent string into browser, OS, device, and engine components.

View JSON as a collapsible tree with color-coded types, expand/collapse nodes, and search.

Write HTML, CSS, and JS in an editor and see a live preview in a sandboxed iframe.

Paste Open Graph meta tags and preview how your links appear on social media platforms.

Browse, search, and copy characters from an interactive ASCII and Unicode character table.

Browse curated regex patterns organized by category with one-click copy to clipboard.

Convert between px, rem, em, vw, vh, and % with configurable base font size.

Encrypt and decrypt text using AES-256-GCM with password-based key derivation.

Upload an image with a QR code and decode its content — supports URLs, text, and data.

Paste a regex pattern and get a plain-English explanation of what each part matches.

Generate Apache and Nginx htpasswd entries with bcrypt, SHA-1, or MD5 hashing.

Optimize and minify SVG files — reduce file size while preserving visual quality.

Test XPath expressions against XML documents and see matched nodes instantly.

Sort JSON object keys alphabetically — deep or shallow mode with instant output.

Validate .env files — find syntax errors, duplicate keys, and empty values.

Build CORS response headers for Apache, Nginx, Express, or raw HTTP configuration.

Search and browse common network ports with service names, protocols, and descriptions.

Test your typing speed with random passages — get WPM, accuracy, and error stats.

Count characters, words, sentences, and paragraphs in your text with detailed statistics.

Encode and decode Base58 strings used in Bitcoin and IPFS addresses.

Generate Data URIs from text or files for embedding in HTML and CSS.

Fix broken JSON by automatically correcting common syntax errors.

Run JavaScript code snippets instantly in a sandboxed environment.

Convert docker run commands to docker-compose.yml and back.

Decode and inspect X.509 SSL/TLS certificates.

Generate beautiful code screenshots with syntax highlighting.

Build cron expressions visually with dropdowns and live preview.

Parse, edit, sort, and validate .env files.

Parse and explain HTTP headers with security recommendations.

Interactive regex reference with syntax groups and examples.

Visual side-by-side diff of two text blocks.

Live preview Mermaid.js diagrams with SVG/PNG export.

Validate JSON data against a JSON Schema with detailed errors.

Convert colors between HEX, RGB, HSL, and CMYK formats with a live preview.

Convert text between camelCase, snake_case, kebab-case, PascalCase, and 5 more formats instantly.

Encode and decode URLs and query parameters with auto-detection and component-level precision.

Encode and decode HTML entities in named, numeric, or hex formats with a handy reference table.

Convert any text into a clean, URL-friendly slug with customizable separator and case options.

Convert between Unix timestamps and human-readable dates with live clock and multiple output formats.

Convert between binary, octal, decimal, and hexadecimal with support for custom bases 2-36.

Calculate differences between dates, add/subtract days, find weekdays, and more.

Convert between JSON and YAML formats instantly with configurable indentation.

Convert JSON data to TypeScript interfaces or type aliases.

Convert between bytes, KB, MB, GB, TB, and PB in decimal (SI) and binary (IEC) units.

Calculate aspect ratios, find missing dimensions, and preview common ratios.

Convert text to binary, hexadecimal, octal, and ASCII decimal values — and decode back instantly.

Translate text to Morse code and back. Listen with audio playback at adjustable speed.

Remove duplicate lines from text while preserving order. Case-sensitive or insensitive matching.

Sort lines alphabetically, numerically, or by length. Ascending, descending, and reverse options.

Reverse text by characters, words, or lines. Flip entire strings or individual word order.

Convert XML data to JSON format instantly with structure preservation and attribute handling.

Convert YAML data to JSON format with support for anchors, aliases, and multi-document files.

Convert Markdown text to clean HTML with GFM support, tables, and code highlighting.

Convert HTML markup to clean Markdown text preserving links, images, and formatting.

Convert between length, weight, temperature, volume, speed, and area units instantly.

Calculate exact age in years, months, and days from any birth date with upcoming birthday countdown.

Calculate Body Mass Index with metric and imperial units, WHO category classification, and healthy weight range.

Calculate tips and split bills between people with custom tip percentages and rounding options.

Full-featured scientific calculator with trigonometry, logarithms, constants, and expression history.

Calculate sale price, savings amount, and discount percentage instantly.

Convert between Roman numerals and decimal numbers instantly.

Convert numbers into their written English word form.

Calculate investment growth with compound interest over time.

Calculate monthly payments, total interest, and amortization schedules.

Convert JSON to pretty-printed XML with configurable root element name.

Convert text to hexadecimal and hex back to text with configurable delimiter and encoding.

Convert CSV data to a Markdown table with auto-aligned columns.

Convert text to NATO phonetic alphabet spelling for clear voice communication.

Convert date and time between any two time zones with DST awareness.

Convert salary between hourly, daily, weekly, monthly, and annual amounts.

Calculate profit margin, markup percentage, cost, and revenue from any two values.

Calculate VAT-inclusive and VAT-exclusive prices with configurable tax rate.

Convert internationalized domain names between Unicode and Punycode encoding.

Convert TOML to JSON and JSON to TOML bidirectionally with syntax validation.

Strip HTML tags and decode entities to extract clean plain text.

Convert between tab-separated and comma-separated formats with proper quoting.

Convert images to ASCII or Unicode art with configurable width and character set.

Perform arithmetic and bitwise operations in binary, octal, decimal, and hex.

Convert HTML markup to JSX syntax for React components instantly.

Convert JSON data to SQL INSERT statements for database import.

Convert JSON objects to Python dataclass or dictionary definitions.

Convert JSON objects to Go struct definitions with proper types and tags.

Convert JSON objects to Java class definitions with getters and setters.

Convert JSON objects to Kotlin data class definitions.

Convert JSON objects to Dart class definitions for Flutter apps.

Convert JSON objects to C# class definitions with properties.

Convert JSON5 files with comments and trailing commas to strict JSON.

Find the closest named color for any HEX, RGB, or HSL value.

Calculate electricity cost from wattage, hours, and rate per kWh.

Calculate trip fuel cost from distance, efficiency, and gas price.

Calculate GPA from course grades and credit hours.

Convert tabular data to ASCII box-drawing tables.

Convert Tailwind CSS classes to vanilla CSS declarations.

Build HTML tables visually with add/remove controls.

View CSV files in an interactive sortable and filterable table with column statistics.

Convert CSV files to JSON format — choose between array of objects or array of arrays.

Paste or upload JSON and convert it to CSV with configurable delimiter options.

Open XLS and XLSX files in your browser — view sheets, sort columns, and search data.

Convert Excel spreadsheets to CSV format — select sheets and download instantly.

Compare two CSV files side by side with color-coded added, removed, and modified rows.

Merge, split, and compress PDF files directly in your browser. No uploads to external servers.

Convert CSV data into SQL INSERT statements for any database.

Flatten nested JSON to dot-notation paths and unflatten dot-notation back to nested JSON.

Upload a file and compute MD5, SHA-1, SHA-256, and SHA-512 checksums client-side.

Convert CSV files to JSON Lines format for streaming and batch processing.

Parse SQL INSERT statements and convert them to CSV format.

Generate strong, random passwords and passphrases with customizable length, character sets, and bulk generation.

Generate UUID v4 and Nanoid identifiers with format options, bulk generation, and instant copy.

Generate cryptographically random numbers, roll dice, or flip coins with configurable ranges and precision.

Generate placeholder text in paragraphs, sentences, or words — perfect for mockups and prototypes.

Generate QR codes from text or URLs with custom size, colors, error correction, and PNG/SVG download.

Count words, characters, sentences, paragraphs, and get reading time with text statistics.

Calculate percentages quickly with three different modes. Instant results as you type.

Generate barcodes in various formats

Generate realistic fake data for testing

Create beautiful CSS gradients visually. Linear, radial, and conic gradients with live preview.

Build CSS box shadows visually with multiple layers, presets, and live preview.

Generate harmonious color palettes from any base color. Complementary, analogous, triadic, and more.

Generate a free, customized privacy policy for your website. GDPR and CCPA ready — no sign-up required.

Analyze text to find the most common words and their frequencies.

Shuffle and randomize any list of items, names, or numbers.

Build cron expressions with a visual interface and human-readable descriptions.

Create robots.txt files with user-agent rules, sitemaps, and crawl directives.

Generate a .gitignore file by selecting from curated language and framework templates.

Generate placeholder images with custom dimensions, colors, text, and format.

Generate tints, shades, and tones of any color with hex, RGB, and HSL values.

Generate a DMARC DNS record with policy, reporting, and alignment options.

Generate an SPF DNS record with configurable mechanisms and qualifiers.

Generate a Terms of Service document with configurable company details and clauses.

Build valid sitemap XML from a list of URLs with priority and change frequency.

Build Apache .htaccess rules for redirects, caching, security headers, and GZIP.

Add UTM campaign parameters to URLs for tracking in Google Analytics.

Type text and see it rendered as a large ASCII art banner using figlet fonts.

Configure HTTP security headers — HSTS, CSP, X-Frame-Options, Referrer-Policy.

Generate a professional README.md with standard sections from project details.

Generate JSON Schema (draft-07) from example JSON with inferred types and required fields.

Stay focused with configurable work and break intervals, session tracking, and audio alerts.

Generate stylish Unicode text with bold, italic, script, and decorative fonts.

Generate QR codes to share WiFi credentials with a simple scan.

Create calendar event files (.ics) for easy sharing and import.

Design CSS text-shadow effects with a visual editor and live preview.

Build CSS filter effects with blur, brightness, contrast, and more.

Design border-radius values visually with individual corner controls.

Design CSS cubic-bezier timing functions with an interactive curve editor.

Generate Dockerfiles with best-practice multi-stage builds.

Build nginx server block configurations visually.

Generate SSH key pairs client-side with Web Crypto API.

Generate RSA key pairs in PEM format for encryption and signing.

Generate CSS glassmorphism effects with live preview.

Generate CSS-only loading spinners and animations.

Build responsive HTML email templates with live preview.

Compress JPEG, PNG, and WebP images to reduce file size while maintaining quality.

Resize images by pixels or percentage. Maintain aspect ratio or set custom dimensions.

Convert images between PNG, JPEG, and WebP formats with quality control.

Crop images with preset aspect ratios or freeform selection. Interactive controls for precise cropping.

AI-powered background removal. Get transparent backgrounds instantly, all processed in your browser.

Combine one or more images into a PDF document with page size and margin options.

Convert PNG images to JPEG format with adjustable quality and background color.

Convert JPEG images to lossless PNG format preserving full image quality.

Convert any image to WebP format with lossy or lossless compression for the web.

Encode images as Base64 strings. Get Data URI, HTML img tag, or CSS output.

Add text watermarks with opacity, position, rotation, and tiling options

Rotate images by any angle or flip them horizontally and vertically

Apply Gaussian blur or pixelate effects with adjustable strength

Generate favicon files in all sizes from any image for websites

Pick colors from images and get HEX, RGB, and HSL values

Extract dominant colors and full palette from any image

Convert SVG vector graphics to PNG at custom resolutions

Convert iPhone HEIC/HEIF photos to JPEG or PNG format

Convert GIF images to PNG, extract first frame from animations

View EXIF, IPTC, and XMP metadata from any image file

Preview how images and colors appear under different color vision deficiencies.

Flip images horizontally or vertically in your browser, no upload needed.

Generate noise textures (Perlin, simplex, white noise) as PNG.