The Craftsman's Web
Utility Engine for Developers & Designers
Over 127+ standalone micro-tools built with zero-knowledge local client execution. Your data never leaves your browser.
Tool Categories
Browse 127+ utilities across 21 domain categories.
Text Utilities
Case conversion, word counts, line sorting, and diff comparisons.
Security & Crypto
Password generators, Web Crypto hashes, JWT decoders, and bcrypt.
Programming & Dev
JSON validation, SQL formatting, cron expressions, and regex testing.
HTML & Markup
HTML, CSS, JS minifiers, formatters, and Markdown previewers.
Converters
Base64, URL encoding, Hex, Binary, Unit, and Color conversions.
Time & Dates
Unix timestamp converters, timezone matrix, and stopwatch timers.
Design & Image
Color pickers, in-browser image resizing, WEBP compression, and favicons.
Network & IP
IP lookup, WHOIS registration, DNS records, and CIDR subnet math.
SEO & Extraction
Open Graph card previews, heading tag hierarchy, and link extraction.
Random & Fun
List randomizer, team divider, and ASCII art banner generators.
PDF & Documents
In-browser PDF page merging and splitting tools.
Calculators
Percentage, age, date difference, BMI, discount, tip, and EMI math.
Generators
UUID v4, Lorem Ipsum, QR Code, URL slug, mock JSON, and robots.txt.
Accessibility
WCAG color contrast checker and colorblindness visual simulator.
Data Formats
CSV to JSON, JSON to CSV, YAML, XML, and Markdown table converters.
Audio & Video
Client-side audio trimmer, video-to-GIF converter, and video trimmer.
Social Media
X/Twitter thread splitter, Instagram hashtags, and image size cheat sheet.
Image & OCR
In-browser OCR text extraction, image to base64, and meme creator.
Legal Generators
Privacy Policy, Terms & Conditions, Disclaimer, and Cookie Policy builders.
Math & Education
Scientific calculator, statistics, prime numbers, equations, and typing tests.
Browser & Testing
Viewport resolution tester, local storage inspector, and device detector.
Popular Developer Tools
High-frequency, zero-logging utilities for webmasters, engineers, and designers.
Robots.txt File Generator
Create custom `robots.txt` web crawler rule files with sitemap paths.
WHOIS Domain Registration Lookup
Query domain registration details, creation dates, registrar info, and name servers.
Unix Timestamp Converter
Convert epoch Unix timestamps (seconds & milliseconds) to human-readable date strings.
Aspect Ratio & Resolution Calculator
Calculate image and video aspect ratios (16:9, 4:3, 1:1, 21:9) and missing dimensions.
Voice Speech-to-Text Dictation Transcriber
Transcribe spoken microphone voice audio into written text using Web Speech API SpeechRecognition.
Credit Card Luhn Validator
Validate payment card number structure using the MOD 10 Luhn checksum algorithm.
CSS Flexbox Layout Generator
Interactive CSS flexbox container layout builder (flex-direction, justify-content, align-items).