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KlockBase

JSON Diff Viewer

Data & AI Tools

Compare JSON documents

About JSON Diff Viewer

Compare two JSON documents and highlight differences.

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Frequently Asked Questions

How does JSON diff comparison work?
The tool parses both JSON inputs, then recursively compares every key and value. Differences are categorized as added (exists only in the right), removed (exists only in the left), or changed (same key but different value), each shown with distinct color highlighting.
Can I compare nested JSON objects?
Yes. The diff engine deeply compares nested objects and arrays at every level. Nested differences are displayed with their full key path so you can pinpoint exactly where values diverge.
What do the colors mean in the diff output?
Green highlights indicate values that were added in the right JSON. Red highlights indicate values that were removed from the left JSON. Yellow highlights indicate values that exist in both but have different content.
Is my data safe?
Yes! All processing happens entirely in your browser. Your JSON data is never sent to any server. No data is collected, stored, or transmitted.
Does this tool handle arrays in JSON?
Yes. Arrays are compared element by element using their index positions. If one array is longer than the other, extra elements are shown as added or removed differences.
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