JSON Compare

The tool recursively compares two JSON objects and reports differences: keys missing in either object, values that don't match, and structural changes. Differences are shown with dot-notation paths like "user.address.city".

You can choose between Text format (human-readable with color coding) and JSON format (structured key-value differences). Both formats clearly highlight what changed.

Yes, the comparison is fully recursive and handles deeply nested objects, arrays, and mixed data structures. Array order matters in comparisons.

Yes. All processing happens locally in your browser. No data is sent to any server, ensuring complete privacy and security for your JSON files.

Yes, the tool handles large JSON files efficiently. Processing happens client-side, so performance depends on your device capabilities.

Common uses include comparing API responses, tracking configuration changes, debugging data transformations, reviewing database exports, and validating JSON schema migrations.

The tool focuses on comparison, but will indicate if the input isn't valid JSON. For comprehensive validation, use a dedicated JSON validator.

The tool shows differences but doesn't merge them. For merging, you'd need a separate JSON merge tool or manual editing.

Arrays are compared element-by-element in order. If array lengths differ, extra elements are reported as additions or deletions.

Dot-notation paths show the exact location of differences. For example, "users[0].name" means the name field in the first element of the users array.

Currently, you need to paste JSON directly into the input fields. Copy JSON from URLs or files and paste it for comparison.

This is a browser-based tool without an API. For programmatic comparison, consider using JavaScript libraries like deep-diff or lodash.isEqual.