JSON Tools

JSON Compare & Diff Tool

Compare two JSON objects side by side and instantly see the differences. Perfect for API testing, debugging, and configuration management.

How to Use JSON Compare

  1. 1
    Paste your JSON objects

    Enter the original JSON in the left panel and the modified version in the right panel. Both standard JSON and JavaScript object notation are supported.

  2. 2
    Click Compare JSON

    The tool will analyze both objects and identify all differences including added, removed, and changed properties at any nesting level.

  3. 3
    Review the differences

    View results in Diff View for a detailed list of changes, or switch to Tree View to explore both JSON structures side by side with collapsible nodes.

Why Use YaliKit's JSON Compare?

Deep Recursive Comparison

Compares nested objects and arrays at any depth, finding differences that simple text comparison would miss.

100% Private & Secure

All processing happens in your browser. Your JSON data never leaves your device or gets uploaded to any server.

Color-Coded Results

Green for added, red for removed, yellow for changed—instantly understand what's different at a glance.

Flexible Input Format

Accepts both strict JSON and JavaScript object notation with unquoted keys, single quotes, and trailing commas.

Frequently Asked Questions

What types of differences can the JSON Compare tool detect?
YaliKit's JSON Compare detects three types of differences: added properties (new keys in the modified JSON), removed properties (keys that exist in the original but not in the modified), and changed values (same keys with different values). It performs deep comparison on nested objects and arrays.
Can I compare JSON with JavaScript object syntax?
Yes! The tool automatically converts JavaScript object notation to valid JSON. It handles unquoted keys, single quotes, trailing commas, and even escaped string formats. This makes it easy to paste code directly from your console or editor.
Is my JSON data secure when using this comparison tool?
Absolutely. All JSON comparison happens entirely in your browser using JavaScript. Your data never leaves your device or gets sent to any server. This makes YaliKit's JSON Compare safe for comparing sensitive configuration files or API responses.

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