Enhance your productivity with our handy online utility tools. Simplify your tasks and streamline your workflow efficiently.
IPv4 Range Expander The IPv4 Range Expander takes a CIDR notation range (like 192.168.1.0/24) and expands it into a complete list of every individual IP address in that range. This is useful for network administrators, security professionals, and anyone who needs a full enumeration of IPs within a subnet for firewall rules, access control lists, ...
Try the Tool »Phone Number Parser and Formatter Parse and format phone numbers into standard international formats instantly. Enter any phone number in any format and get it converted to E.164, national, international, and RFC 3966 formats. The tool also detects the country, validates the number, and identifies the number type (mobile, fixed line, toll-free, etc.). How to ...
Try the Tool »Safelink Decoder Microsoft SafeLinks wraps URLs with a long, obfuscated protection layer before they reach your inbox. While this is a security measure, it often makes the original link unreadable. The Safelink Decoder instantly extracts the original destination URL from any Microsoft SafeLink, so you can see exactly where a link points before clicking. How ...
Try the Tool »Email Normalizer The Email Normalizer tool standardizes email addresses by applying common normalization rules. It removes dots from Gmail-style local parts, strips plus (+) aliases, converts addresses to lowercase, and removes duplicates. This is useful for deduplication, data cleaning, and identifying unique email accounts. How to Use Enter one or more email addresses, one per ...
Try the Tool »YAML Viewer The YAML Viewer lets you paste or upload any YAML document and instantly see it rendered with full syntax highlighting. Whether you are reviewing Kubernetes manifests, CI/CD pipelines, Docker Compose files, or configuration files, this tool formats your YAML for easy reading and validation. Invalid YAML is flagged with clear error messages so ...
Try the Tool »JavaScript Benchmark Builder The JavaScript Benchmark Builder lets you compare the performance of multiple JavaScript code snippets side by side. Paste up to three code snippets, configure iteration counts and measurement cycles, and instantly see which approach runs fastest in your browser. How to Use Enter at least two JavaScript code snippets in the input ...
Try the Tool »Regex Cheatsheet A comprehensive, searchable quick reference guide for regular expression syntax and common patterns. Whether you are writing validation rules, parsing log files, or doing text transformations, this cheatsheet gives you instant access to the regex patterns you need. How to Use Browse through the categorized tables to find the regex syntax you need. ...
Try the Tool »PDF Signature Checker Verify and inspect digital signatures embedded in PDF files. This tool parses PDF documents directly in your browser to detect and display information about any digital signatures, including signer name, signing date, certificate details, and byte range coverage. How to Use Upload a PDF file using the file uploader. The tool will ...
Try the Tool »YAML to XML Converter Convert YAML to well-formed XML instantly. Paste your YAML content and get properly structured XML output with configurable options for array handling, null values, indentation, and XML declaration. Includes reverse XML-to-YAML conversion, validation with error reporting, and a reference guide for mapping rules. How to Use Paste YAML into the input ...
Try the Tool »AI Content Detector Analyze text to determine whether it was likely written by an AI language model or by a human. This tool uses AI to evaluate writing patterns, vocabulary choices, sentence structure, and other linguistic indicators to provide a confidence-rated verdict on the origin of the text. How to Use Paste the text you ...
Try the Tool »Phone Number Validator Validate international phone numbers instantly. Enter any phone number with its country code and check whether it follows the correct format for that country. Get detailed information including the number type (mobile, landline, toll-free), country of origin, and properly formatted versions in E.164, international, and national formats. How to Use 1. Enter ...
Try the Tool »Routing Number Validator Instantly validate US bank ABA routing numbers using the official checksum algorithm. Enter any 9-digit routing number to check whether it is valid, identify the Federal Reserve district, and see a step-by-step breakdown of the checksum calculation. How to Use 1. Enter or paste a 9-digit ABA routing number in the input ...
Try the Tool »Bitcoin Address Validator Instantly verify whether a Bitcoin wallet address is valid. This tool checks the format, encoding, and checksum of any Bitcoin address, supporting all major address types: Legacy (P2PKH), Script (P2SH), Native SegWit (Bech32), and Taproot (Bech32m). Paste an address and get immediate validation results with detailed type and network information. How to ...
Try the Tool »VAT Number Validator Quickly validate European VAT numbers by checking the format against official country-specific patterns. Enter any EU VAT number with its country prefix and instantly see whether the format is correct, along with details about the country and expected structure. How to Use Enter a VAT number including the 2-letter country prefix (e.g., ...
Try the Tool »CSS Validator The CSS Validator checks your CSS stylesheets for syntax errors, invalid properties, and W3C compliance issues. Paste your CSS code and get instant feedback with detailed error messages, line numbers, and warnings to help you write clean, standards-compliant stylesheets. How to Use Paste or type your CSS code into the input area. The ...
Try the Tool »XML Validator Validate your XML documents instantly for well-formedness and syntax errors. This tool uses a standards-compliant XML parser to check your markup and pinpoint exactly where problems occur, showing line numbers, column positions, and clear error descriptions. How to Use Paste or type your XML content into the input area. The validator automatically checks ...
Try the Tool »HTML Validator Validate your HTML markup instantly for syntax errors and W3C compliance. This free online HTML validator checks for unclosed tags, missing required attributes, deprecated elements, duplicate IDs, invalid nesting, and structural issues — all in real time as you type. How to Use 1. Paste your HTML code into the input textarea, or ...
Try the Tool »ZIP Code Validator Quickly validate US ZIP codes to check whether they follow the correct 5-digit or ZIP+4 format. Paste one or multiple ZIP codes and get instant validation results with clear valid/invalid badges. How to Use Enter one or more US ZIP codes in the input field, one per line. The tool automatically validates ...
Try the Tool »YAML Validator Validate your YAML files instantly for syntax correctness. Paste your YAML content and get real-time feedback with detailed error messages including line numbers and column positions to help you quickly find and fix issues. How to Use 1. Paste or type your YAML content into the input field. 2. The validator automatically checks ...
Try the Tool »HTTP Request Header Builder Build HTTP request headers visually. Add common headers from a dropdown (Authorization, Content-Type, Accept, Cache-Control, etc.), configure authentication (Bearer token, Basic auth, API key), and add custom headers. The output is a ready-to-copy header block formatted for curl, fetch, or any HTTP client. How to Use Use the Add Common Header ...
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Update: Our latest tool was added on Apr 23, 2026
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