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Utilities

Enhance your productivity with our handy online utility tools. Simplify your tasks and streamline your workflow efficiently.

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User-Agent String Parser

User-Agent String Parser Paste any User-Agent string to instantly identify the browser, operating system, device type, rendering engine, and platform. Detects bots, supports batch parsing, and exports results as JSON or CSV. How to Use Paste a User-Agent string into the input field for instant analysis. Use the “Detect Mine” button to analyze your current ...

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HTTP Header Analyzer

HTTP Header Analyzer Paste any HTTP request or response headers for instant analysis. Categorizes headers by type, explains each header’s purpose, validates CORS and caching configurations, flags deprecated headers, and provides performance optimization suggestions. How to Use Paste HTTP headers (key: value format, one per line) into the input field. The tool automatically parses, categorizes, ...

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Robots.txt Tester

Robots.txt Tester Paste your robots.txt file and test whether specific URLs are allowed or blocked for any crawler. Validates syntax against RFC 9309, highlights errors, and extracts sitemap references. How to Use Paste your robots.txt content into the input field, enter a URL path to test, and select a User-agent. The tool instantly shows whether ...

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Security Headers Checker

Security Headers Checker Paste HTTP response headers to instantly analyze your site’s security posture. Checks all critical security headers, assigns an overall grade from A+ to F, and provides actionable fix recommendations with server configuration examples. How to Use Paste your HTTP response headers (key: value format, one per line) into the input field. The ...

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Cookie Parser & Decoder

Cookie Parser & Decoder Paste any Cookie or Set-Cookie header to instantly parse it into structured, readable data. Identifies all cookie attributes, URL-decodes values, flags security issues, and exports results as JSON. How to Use Paste a Cookie header (semicolon-separated key=value pairs) or one or more Set-Cookie headers (one per line) into the input field. ...

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Webhook Payload Inspector

Webhook Payload Inspector Paste any webhook payload to instantly parse, pretty-print, and inspect its structure. Supports JSON, XML, and URL-encoded form data with automatic format detection, HMAC signature validation, and example payloads from popular providers. How to Use Paste your webhook payload into the input field. The tool auto-detects the format and displays a formatted, ...

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TCP/UDP Port Lookup

TCP/UDP Port Lookup Look up TCP and UDP port numbers to find their associated service names, or search by service name to discover which ports they use. Powered by the official IANA Service Name and Transport Protocol Port Number Registry. How to Use Enter a port number (1-65535) or service name in the search field. ...

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Git Conflict Marker Remover

Git Conflict Marker Remover Resolve git merge conflicts quickly without an IDE. Paste code with conflict markers, choose which version to keep for each conflict, and get clean output — ready to commit. How to Use Paste your file containing git conflict markers (>). The tool detects and highlights each conflict. For each one, choose ...

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File Hash Calculator

File Hash Calculator Calculate MD5, SHA-1, SHA-256, SHA-512, and SHA-3 checksums for any file — entirely in your browser. Verify file integrity by comparing hashes, process multiple files in batch mode, and handle files up to 2GB with chunked streaming. How to Use Drag and drop a file (or click to browse), select which hash ...

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ASN.1 Parser

ASN.1 Parser Decode and inspect ASN.1 (Abstract Syntax Notation One) encoded data used in X.509 certificates, PKCS structures, and cryptographic protocols. Paste hex, base64, or PEM-encoded data and instantly see the full parsed structure. How to Use 1. Paste your ASN.1 data in hex, base64, or PEM format into the input field. 2. The parser ...

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Gzip / Zlib / Deflate Tester

Gzip / Zlib / Deflate Tester Compress and decompress data using gzip, zlib, and raw deflate formats directly in your browser. Test compression output, verify data integrity, and measure size savings — all client-side with no data leaving your machine. How to Use 1. Choose your mode: Compress or Decompress. 2. For compression: paste text ...

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File Extension Lookup

File Extension Lookup Instantly identify any file type by its extension. Search a database of 500+ file extensions to find descriptions, MIME types, and which programs open them on Windows, macOS, and Linux. How to Use Type a file extension (like .docx or .mp4), a MIME type, or a keyword (like “video” or “image”) into ...

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Character Encoding Detector

Character Encoding Detector Detect the character encoding of any text or file, convert between encodings, and fix mojibake — all client-side. Supports UTF-8, UTF-16, ISO-8859, Windows codepages, Shift_JIS, EUC-JP, GBK, Big5, KOI8-R, and more. How to Use Paste text or upload a file to detect its encoding. The tool analyzes byte patterns and displays possible ...

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Webhook Signature Validator

Webhook Signature Validator Validate and generate HMAC webhook signatures for secure API integrations. Verify that incoming webhooks from Stripe, GitHub, Shopify, and other providers are authentic by validating their cryptographic signatures, or generate signatures for testing your own webhook endpoints. How to Use Validate mode: Paste your webhook payload, secret key, and the signature you ...

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Webhook Signature Validator

Webhook Signature Validator Validate and generate HMAC-based webhook signatures directly in your browser. Verify that incoming webhook payloads are authentic by checking their cryptographic signatures, or generate signatures for testing your webhook endpoints. How to Use Validate mode: Paste the webhook payload body, enter your secret key, paste the received signature, and select the algorithm. ...

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Image Metadata (EXIF) Viewer

Image Metadata (EXIF) Viewer View, export, and strip EXIF metadata from your images — entirely in your browser. No uploads, no servers, complete privacy. How to Use Drop an image file onto the upload area or click to select one. The tool instantly parses and displays all embedded metadata organized into clear categories. View GPS ...

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IBAN Validator & Generator

IBAN Validator & Generator Validate, generate, and format International Bank Account Numbers (IBANs) using the ISO 13616 standard. Supports 80+ countries with per-country validation rules. How to Use Choose a mode: Validate to check an existing IBAN, Generate to create a valid IBAN from country, bank code, and account number, or Bulk Validate to check ...

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Readability Score Calculator

Analyze Your Text Readability Check how easy or difficult your text is to read using six established readability formulas. Paste any text — articles, blog posts, emails, or documents — and get instant scores with grade level interpretations. How to Use Paste or type your text into the input area and click Calculate. The tool ...

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Typing Speed Test (WPM Calculator)

Test Your Typing Speed Measure your typing speed in Words Per Minute (WPM) with this interactive typing speed test. Choose your difficulty level, start the timer, and type the displayed text as quickly and accurately as you can. How to Use Select your preferred test duration (30, 60, or 120 seconds) and difficulty level (easy, ...

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DNS Lookup

Look Up DNS Records for Any Domain Query DNS records for any domain name including A, AAAA, MX, NS, TXT, CNAME, and SOA records. Essential for network administrators, developers, and anyone troubleshooting domain configurations. How to Use Enter a domain name (e.g., example.com) and select the record type you want to query. Click Lookup to ...

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