Developer Utilities
Developer Tools
Free browser-based tools for JSON, regex, UUIDs, Base64, timestamps, encoding and everyday software development tasks.
Available tools
Choose a tool to get started.
JSON Formatter
Format and beautify JSON data for easier reading, debugging and inspection.
Regex Tester
Test regular expressions against sample text and inspect matching results.
UUID Generator
Generate UUID values quickly for development, testing and database workflows.
JSON Validator
Validate JSON syntax and identify common formatting or structural errors.
Base64 Encoder / Decoder
Encode text or data to Base64 and decode Base64 content back to readable form.
Unix Timestamp Converter
Convert Unix timestamps to readable dates and dates back to Unix timestamps.
URL Encoder / Decoder
Encode or decode URL components and special characters safely.
JWT Decoder
Decode JSON Web Token headers and payloads for inspection and debugging.
Hash Generator
Generate common cryptographic hashes from text or input data.
Text Diff Checker
Compare two blocks of text and highlight additions, removals and changes.
HTML Formatter
Format and beautify HTML for easier reading and debugging.
SQL Formatter
Format SQL queries into a cleaner, more readable structure.
About Developer Tools
Free browser-based tools for JSON, regex, UUIDs, Base64, timestamps, encoding and everyday software development tasks. New utilities will be added as the collection grows.