Utilso

Format JSON, decode Base64, convert timestamps, debug JWT… with just one click!
Stop pasting sensitive data
To random websites online.
Work completely offline! Everything you paste into the app never leaves your machine.

New tools: Image Converter - minify or convert images to JPEG, PNG, WebP, or TIFF

Auto Detection
Automatically detects the right tool based on the contents of your clipboard
For example:
JWT string ➡️ JWT Debugger
Unix Time ➡️ Time converter
Valid Base64 ➡️ Base64 Decoder