Web Developer Tools
A daily toolkit for web developers: a regex debugger with match highlighting, a QR code generator, a cron expression translator into plain language, an HTTP status reference, a chmod permissions calculator, a User-Agent parser and a cURL-to-code converter.
14 tools
In this category
Regex Tester & Debugger
Test regular expressions with match highlighting, groups, and common patterns
HTML Meta Tag Generator
Generate SEO-optimized HTML meta tags for your website
cURL to Code Converter
Convert cURL commands to JavaScript, Python, and PHP code
QR Code Generator
Generate QR codes from text or URLs with customizable colors and size
Cron Expression Parser
Parse cron expressions into human-readable descriptions and see next execution dates
IP Address Info
Show your current IP, validate IPv4/IPv6, detect IP class, and calculate CIDR notation
User Agent Parser
Parse user agent strings into browser, OS, and device info with bot detection
JS Obfuscator
Obfuscate JavaScript code with variable renaming, string encoding, whitespace removal, and control flow flattening
HTTP Status Code Reference
Complete HTTP status code reference with search, color-coded categories, and click-to-copy
URL Parser
Parse any URL into its components, extract query parameters, and interactively build URLs
MIME Type Lookup
Search and browse 200+ MIME types by extension or type with category filtering and instant copy
Chmod Calculator
Unix file permission calculator with interactive checkboxes, numeric/symbolic notation, reverse input, and common presets
Barcode Generator
Generate Code 128 and Code 39 barcodes client-side with Canvas rendering, customizable options, and PNG download
Placeholder Image Generator
Generate placeholder images with custom dimensions, text, and colors using HTML5 Canvas — download as PNG or copy as data URI
It speeds up debugging requests, configuring scheduled tasks and inspecting headers — without ever leaving the browser.