Private browser utility

JSON Diff

Compare two JSON documents side by side in your browser and see added, removed, and changed values without uploading either file.

What this tool is good for

Compare parsed JSON values by path instead of plain text.

Spot changed booleans, strings, numbers, arrays, and nested fields.

Get a concise text summary that is easy to paste into an issue.

Example input

Original JSON

{"name":"Ada","roles":["admin"],"active":true}

Updated JSON

{"name":"Ada","roles":["admin","editor"],"active":false,"team":"platform"}