Essential Tools for Every Developer
Free, fast, and secure utilities for your daily workflow. From JSON formatting to Base64 encoding and UUID generation.
JSON Formatter
Format, validate & beautify JSON data with syntax highlighting
Base64
Encode & decode Base64 strings for data transmission
JWT Decoder
Decode and inspect JWT token payload and signatures
UUID Generator
Generate UUID v4 identifiers for your applications
Hash Calculator
Calculate MD5, SHA-1, SHA-256, SHA-512 hashes
JSON Formatter
Format, validate & beautify JSON data with syntax highlighting
YAML Formatter
Format, validate, and convert YAML to JSON
XML Formatter
Format, validate, and minify XML data
HTML Formatter
Beautify, minify, and clean HTML
Markdown Previewer
Live preview and convert Markdown to HTML
Regex Tester
Test & validate regular expressions with real-time matching
Diff Checker
Compare two texts and find differences
SQL Formatter
Format and beautify SQL queries
Base64
Encode & decode Base64 strings for data transmission
URL Encoder
Encode & decode URLs and query parameters safely
JWT Decoder
Decode and inspect JWT token payload and signatures
JWT Encoder
Create and sign JWT tokens with HS256
JSONP Tester
Simulate JSONP requests and parse responses
Gzip Calculator
Estimate compression size for Gzip
Data URI Generator
Convert files to Data URIs
UUID Generator
Generate UUID v4 identifiers for your applications
Hash Calculator
Calculate MD5, SHA-1, SHA-256, SHA-512 hashes
Lorem Ipsum
Generate placeholder text for mockups and prototypes
QR Code
Generate QR codes from text or URLs
Barcode
Generate Code128 barcodes
Password Generator
Generate secure random passwords with entropy display
Image Placeholder
Generate colored placeholder images
Color Converter
Convert between HEX, RGB, HSL color formats
Timestamp
Convert Unix timestamps to readable dates and times
Time Zone
Convert times between different time zones
Number Base Converter
Convert between decimal, binary, hex, and octal
Cron Parser
Validate cron expressions and see next execution times
Unicode Inspector
Explore Unicode characters and their properties
CSS Formatter
Beautify and minify CSS
CSS Filter Generator
Apply visual CSS filters