Code & Developer Tools
Developer utilities - validate JSON, test regex, generate UUIDs, encode Base64, and more.
All Developer Tools (5)
Essential utilities for developers and engineers
JSON Formatter & Validator
Format, validate, and beautify JSON with syntax highlighting
Base64 Encoder/Decoder
Encode and decode Base64 strings and files
Regex Tester
Test and debug regular expressions with live matching
UUID & Hash Generator
Generate UUIDs, NanoIDs, and cryptographic hashes (MD5, SHA-256, SHA-512)
Merge HTML & CSS
Inline CSS into HTML for email templates
Related Tool Categories
Text & Document Tools
Text editing and formatting tools - convert, count, compare, and transform text instantly.
Data & Conversion Tools
Data conversion tools - convert between CSV, JSON, XML, YAML, and other formats.
Generators & Utilities
Generate passwords, UUIDs, placeholder text, QR codes, barcodes, and more.