THE DEVELOPER UTILITY BELT
Fast, free, no signup.
Tools that just work.
A collection of 50+ free developer tools. No registration, no ads on homepage, just pure utility.
Featured Tools
Password Generator
Generate secure passwords instantly
GeneratorsUUID Generator
Generate random UUIDs (v4) instantly
GeneratorsBase64 Encoder/Decoder
Encode and decode Base64 strings instantly
EncodersJSON Formatter
Format, validate and beautify JSON instantly
FormattersAll Tools
Password Generator
Generate secure passwords instantly
GeneratorsUUID Generator
Generate random UUIDs (v4) instantly
GeneratorsAPI Key Generator
Generate secure API keys instantly
GeneratorsSecret Key Generator
Generate cryptographic secret keys
GeneratorsHash Generator
Generate MD5, SHA1, SHA256, SHA512 hashes
GeneratorsRandom String Generator
Generate random strings with custom character sets
GeneratorsJWT Decoder
Decode and inspect JWT tokens
GeneratorsBase64 Encoder/Decoder
Encode and decode Base64 strings instantly
EncodersURL Encoder/Decoder
Encode and decode URL components
EncodersHTML Entity Encoder
Encode and decode HTML entities
EncodersMorse Code Converter
Convert text to Morse code and vice versa
EncodersBinary Text Converter
Convert text to binary and binary to text
EncodersHex Encoder/Decoder
Convert text to hexadecimal and back
EncodersJSON Formatter
Format, validate and beautify JSON instantly
FormattersCSS Formatter
Format and beautify CSS code
FormattersSQL Formatter
Format and beautify SQL queries
FormattersXML Formatter
Format and beautify XML documents
FormattersMarkdown Previewer
Preview Markdown with live rendering
FormattersRegex Tester
Test and debug regular expressions
FormattersCSS Gradient Generator
Create custom CSS gradients visually
CSS ToolsBox Shadow Generator
Create CSS box shadows visually
CSS ToolsBorder Radius Generator
Create custom border radius with visual preview
CSS ToolsColor Converter
Convert between HEX, RGB, HSL, RGBA
CSS ToolsUnix Timestamp Converter
Convert between Unix timestamps and dates
CalculatorsCron Expression Generator
Generate cron expressions for task scheduling
CalculatorsByte Converter
Convert between B, KB, MB, GB, TB
CalculatorsNumber Base Converter
Convert between Binary, Octal, Decimal, Hex
CalculatorsPercentage Calculator
Calculate percentages, increases, and decreases
CalculatorsMeta Tag Generator
Generate SEO meta tags for your website
Web ToolsOG Tag Generator
Generate Open Graph meta tags
Web Tools.htaccess Generator
Generate .htaccess rules for Apache
Web ToolsLorem Ipsum Generator
Generate Lorem Ipsum placeholder text
Web ToolsAspect Ratio Calculator
Calculate aspect ratios for responsive design
Web ToolsWord Counter
Count words, characters, sentences, and paragraphs
Text ToolsText Case Converter
Convert text case: camelCase, snake_case, kebab-case
Text ToolsDuplicate Line Remover
Remove duplicate lines from text
Text ToolsText Diff Checker
Compare two texts and find differences
Text ToolsSlug Generator
Generate URL-friendly slugs from text
Text ToolsPalindrome Checker
Check if text is a palindrome
Text ToolsImage to Base64
Convert images to Base64 encoded strings
Image ToolsColor Palette Generator
Generate harmonious color palettes
Image ToolsContrast Ratio Checker
Check WCAG contrast ratios for accessibility
Image ToolsFavicon Generator
Generate favicons in multiple sizes
Image ToolsCORS Header Generator
Generate CORS headers for your API
Security ToolsCSP Generator
Generate Content Security Policy headers
Security ToolsSSL Checker
Check SSL certificate validity and details
Security ToolsIP Lookup
Get details about any IP address
Security ToolsQR Code Generator
Generate QR codes for URLs, text, and more
MiscJSON to CSV Converter
Convert JSON data to CSV format
MiscViewport Tester
Test responsive viewports and breakpoints
Misc