IP, DNS, dev, file, and SEO tools
Practical utilities for every problem you hit on the web. See your public IP, decode JWTs, encode Base64, generate UUIDs, check keyword density, build a robots.txt. All instant, all in your browser.
Network
Lookup
Infrastructure & DNS
Info
Developer
- URL Shortener
Shorten any URL with an optional custom alias. Track clicks. Sign in to manage your links.
Open tool - Base64 Encoder & Decoder
Convert any text or binary data to and from Base64 in your browser.
Open tool - JWT Decoder
Paste a JWT to see its header, payload, and signature.
Open tool - UUID Generator
Generate random UUIDs (version 4) directly in your browser.
Open tool - Hash Generator (MD5, SHA-1, SHA-256, SHA-384, SHA-512)
Compute MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes of any text.
Open tool - Regex Tester
Test a regular expression against any text, see matches and capture groups live.
Open tool - Timestamp Converter
Convert between Unix epoch timestamps and human-readable ISO 8601 dates.
Open tool - JSON Formatter & Validator
Format, validate, and minify JSON instantly in your browser.
Open tool - SQL Formatter
Format dense SQL into readable, multi-line statements in your browser.
Open tool - XML Formatter & Minifier
Format any XML, RSS feed, SOAP response, or SVG with proper indentation.
Open tool - Snippet Vault
Save text, JSON, regex, code, or config snippets with optional shareable links and expiry.
Open tool - Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text in any quantity, with or without the classic starting phrase.
Open tool - Case Converter
Convert any text between every common case style: camel, Pascal, kebab, snake, CONSTANT, Title, sentence, dot, lower, and upper.
Open tool - URL Encoder and Decoder
Encode any string to URL-safe percent-encoding, or decode an encoded URL back to plain text.
Open tool - Password Generator
Generate cryptographically strong random passwords with adjustable length and character pools.
Open tool - HTML Entity Encoder and Decoder
Encode HTML reserved characters as entities or decode entities back to their original characters.
Open tool - Time Zone Converter
Pick a source date and time and see the equivalent local time in 20 common time zones around the world.
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File & data
- QR Code Generator
Generate a QR code for any URL, text, Wi-Fi credential, or contact card.
Open tool - CSV to JSON Converter
Convert between CSV and JSON in either direction, in your browser.
Open tool - Markdown Editor
Write Markdown on the left, see the rendered result on the right.
Open tool - Markdown to HTML Converter
Convert Markdown to clean HTML or HTML back to Markdown, instantly in your browser.
Open tool - Color Palette Generator
Generate complementary, analogous, triadic, tetradic, split-complementary, and monochromatic palettes from any base color.
Open tool - PDF Merge, Split, Rearrange
Combine PDFs, extract a page range, or reorder and rotate pages. No upload, ever.
Open tool - WCAG Contrast Checker
Check foreground / background contrast ratio against WCAG AA and AAA standards.
Open tool - Color Blindness Simulator
See how any color appears under the four major color vision deficiencies.
Open tool - Favicon Generator
Upload any image and generate the full set of favicon sizes (16x16 to 512x512) for web, iOS, and PWA.
Open tool - Image Converter (JPEG, PNG, WebP)
Convert between JPEG, PNG, and WebP in your browser. No upload.
Open tool - Convert to WebP
Drop in a JPEG or PNG, get a WebP that loads faster and looks the same.
Open tool - Barcode Generator (CODE128, EAN-13, UPC)
Generate retail and industrial barcodes in your browser. Download as PNG.
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SEO
- Word Counter and Reading Time
Count words, characters, sentences, paragraphs, and estimate reading and speaking time.
Open tool - URL Slug Generator
Strip accents, punctuation, and spaces to produce a clean URL-safe slug from any title.
Open tool - Keyword Density Checker
Paste any text to see word counts, the top single words, and the top two-word and three-word phrases.
Open tool - Google SERP Preview
Visualize how your page title and meta description will appear in a Google search result.
Open tool - OpenGraph Preview
Preview how your page will appear when shared on Facebook, LinkedIn, Slack, and other OG-aware platforms.
Open tool - robots.txt Builder
Build a clean robots.txt from a simple form, with rules for user agents and sitemap references.
Open tool - Schema.org JSON-LD Generator
Generate valid JSON-LD structured data for Organization, FAQ, Article, and BreadcrumbList.
Open tool - XML Sitemap Generator
Paste a list of URLs to generate a valid XML sitemap, with per-URL priority and change-frequency.
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