Data & JSON tools

JSON Diff Visual Comparison Tool

Free online JSON diff visual comparison: recursively compare object and array structures, show additions, deletions, changes and type changes in a tree view, with local-only processing.

Left JSON

Right JSON

Statistics：

Hide equal items

Visual diff

Path

Left

Right

How to Use

Input JSON: Enter the JSON data you want to compare into the left and right input boxes.
Format/Swap: Use the toolbar buttons to format JSON or swap left/right content.
Compare: Click the "Compare Diff" button to generate a visual diff tree.
View Details: Differences are highlighted in colors (Added: green, Removed: red, Changed: yellow). Supports expanding/collapsing nodes and hiding equal items.

Tips & FAQ

Local & Secure: All comparisons are performed locally in your browser. Your JSON data is never uploaded to any server.

View Controls: Enable "Hide equal items" to focus on differences; use "Expand All" or "Collapse All" to adjust the tree view.

Export Feature: Click "Copy diff list JSON" to export the differences as structured data for further processing.

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