Tool documentation
Understand each tool before you run it. The documentation is generated from the same registry as the tools themselves.
Internet Speed Test
Measure browser download speed, upload speed, and latency using a lightweight local test.
Internet & Network
What's My IP
Reveal your public IP and key browser details while keeping the process privacy-friendly.
Internet & Network
DNS Lookup
Inspect A, AAAA, MX, CNAME, TXT, NS, SOA, and CAA records for a domain.
Internet & Network
Domain Checker
Check domain availability, status, and structure in a simple browser-based validator.
Website & Domain
HTTP Status Checker
Check the HTTP response for a URL and review the status, server, and redirect chain.
Website & Domain
Is My Website Down?
Test if a site is reachable and quickly review the response status and timing.
Website & Domain
Website Audit
Analyze a public website's SEO, technical health, security headers, performance signals, and accessibility basics.
Website & Domain
Headers Checker
Review HTTP response headers for caching, content type, security, and debugging information.
Website & Domain
SSL Checker
Review certificate validity, issuer, SAN entries, subject data, and remaining validity time.
Website & Domain
Ping
Measure the latency between your browser and a public endpoint using browser-friendly timing.
Internet & Network
Port Checker
Check whether a given host and port appear reachable from the browser environment.
Internet & Network
User Agent
Parse device, browser, and operating system details from the incoming user agent string.
Utilities
Color Converter
Convert colors between HEX, RGB, and HSL in real time.
Utilities
JSON Formatter
Validate, format, minify, copy, and download JSON with a quick browser-based parser.
Developer
Base64
Encode and decode UTF-8 text directly in your browser.
Developer
Hash Generator
Create SHA-256, SHA-384, or SHA-512 hashes locally in your browser.
Developer
Number Base Converter
Convert non-negative integers between binary, decimal, and hexadecimal.
Developer
JWT Decoder
Decode readable JWT headers and payloads locally without verifying signatures.
Developer
URL Encoder
Encode or decode URL strings and query parameter content securely in-browser.
Developer
QR Code Generator
Generate a QR code from text or a URL and download it as a PNG image.
Utilities
Merge PDFs
Combine multiple PDF files into one document locally in your browser.
Utilities
Split PDF
Extract selected pages from a PDF into a new document locally.
Utilities
Remove PDF Pages
Remove selected pages from a PDF without uploading the file.
Utilities
Images to PDF
Combine PNG and JPEG images into a single PDF document locally.
Utilities
Text to PDF
Turn plain text into a simple downloadable PDF document in your browser.
Utilities
UUID Generator
Generate version 4 UUID strings using cryptographically secure randomness.
Developer
Password Generator
Create strong random passwords with adjustable length and symbol support.
Utilities
Case Converter
Convert text to upper, lower, title, camel, or snake case in your browser.
Utilities
Lorem Ipsum Generator
Generate placeholder paragraphs with adjustable paragraph and word counts.
Utilities
Date Difference
Calculate the exact difference between two dates and times.
Utilities
Timestamp Converter
Convert between Unix timestamps and human-readable dates in seconds or milliseconds.
Developer
Regex Tester
Test regular expressions against sample text to validate search and parse logic quickly.
Developer
Text Counter
Count characters, words, lines, sentences, and estimated reading time for any text block.
Utilities