JSON Diff

JSON

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JSON Diff runs on your device

Runs in your browser

No uploads.There is no file-upload endpoint on duck.tools. This tool process your input inside this browser tab.
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Both documents are compared in this page. Nothing is sent to Duck Tools or anywhere else.

To be precise: your browser still downloads this page, its scriptsover the network, and our web server keeps standard access logs. What never travels is the content you put into a local tool.

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JSON Diff

Compare two JSON documents and list added, removed and changed paths.

Paste two JSON values and see a structural diff. Object key order is ignored; arrays are compared by index. Each change shows a JSON pointer plus the old and new values. Nothing is uploaded.

How it works

Paste the original JSON on the left and the new JSON on the right.
We walk both trees and list every added, removed or changed path.
Object keys can arrive in any order; array items are compared by index.
Copy a compact summary of the changes.

Also known as

json
diff
compare
changes
pointer

Related tools

JSON FormatterPretty-print JSON and inspect it as text or a collapsible tree.
JSON ValidatorCheck JSON syntax and see the line, column and a short hint.
JSON DesignerBuild JSON structures and datasets from a visual editor, then copy the result.

LOCALRuns in your browser

No uploads.There is no file-upload endpoint on duck.tools. This tool process your input inside this browser tab.
No tracking.No analytics and no tracking cookies. Sign-in uses a session cookie and loads Cloudflare Turnstile only when you open the account dialog.
We never see your data.Your file never reaches a Duck Tools server, so there is nothing for us to store, read or leak.

Both documents are compared in this page. Nothing is sent to Duck Tools or anywhere else.

To be precise: your browser still downloads this page, its scriptsover the network, and our web server keeps standard access logs. What never travels is the content you put into a local tool.

More json tools →Full privacy page →