Developer Tools
Free, browser-only utilities for developers.
No account needed. No data leaves your machine.
JSON Formatter
Pretty-print and validate JSON with syntax highlighting.
XML Formatter
Pretty-print and indent XML markup.
Time Converter
Convert Unix timestamps to human-readable dates. Accepts seconds, milliseconds, or ISO 8601.
Base64
Encode plain text to Base64 or decode Base64 back to text. Auto-detects which direction.
UUID Generator
Generate one or many version 4 UUIDs instantly.