Utilso

All-in-one tools for developers. Format JSON, decode Base64, convert timestamps, debug JWT… with just one click!

Work Offline: Stop pasting JSON strings, JWT tokens, or sensitive data to random websites online. Utilso works entirely offline! Everything you paste into the app never leaves your machine.

Auto Detection: Utilso automagically detects the right tool based on your clipboard content.

Work entirely offline!

List of current tools: - Unix Time Converter - JSON Format/Validate - Base64 Encode/Decode - RegExp Tester - URL Encode/Decode - Query String to JSON - HTML Entity Encode/Decode - Backslash Escape/Unescape - UUID/ULID Generate/Decode - HTML Preview - Text Diff Checker - YAML to JSON - JSON to YAML - Number Base Converter - HTML Beautify/Minify - CSS Beautify/Minify - JS Beautify/Minify - XML Beautify/Minify