Developer Utilities
Essential coding tools for developers. Format, encode, decode, and generate hashes — all 100% private, running directly in your browser.
Base64 Encoder
Encode and decode Base64 text and files
CIDR Calculator
Calculate network ranges and subnet masks
Cron Parser
Parse and validate cron job expressions
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes
HTML Encoder
Encode and decode HTML entities
JSON Formatter
Format, validate, and beautify JSON data instantly
JSON to CSV
Convert JSON data to CSV format
JSON to TypeScript
Generate TypeScript interfaces from JSON
JSON Validator
Validate JSON syntax and structure
JSONPath Tester
Test and evaluate JSONPath expressions
JWT Decoder
Decode JSON Web Tokens to view header and payload
Markdown to HTML
Convert Markdown syntax to HTML
MIME Checker
Check and validate MIME types
Regex Tester
Test regular expressions with live preview
Slug Generator
Generate URL-friendly slugs from text
SQL Formatter
Format and beautify SQL queries
Timestamp Converter
Convert between Unix timestamps and dates
URL Encoder
Encode and decode URLs, parse query parameters
URL Parser
Parse and analyze URL components
User Agent Parser
Parse user agent strings to identify browsers and OS
UUID Generator
Generate random UUIDs and GUIDs
XML Formatter
Format and validate XML documents
XPath Tester
Test XPath expressions against XML/HTML
YAML to JSON
Convert between YAML and JSON formats