Guide

How to Compare JSON Online

Comparing two JSON payloads helps you quickly spot what changed between versions of an API response, config, or event.

Open JSON Compare

Common JSON mistakes

Differences often hide in nested objects, array ordering, or renamed keys. A structured compare view highlights exact changed paths.

Quick compare workflow

1. Paste your baseline JSON into JSON A.

2. Paste the updated JSON into JSON B.

3. Click Compare JSON.

4. Review added, removed, and changed paths.

Comparing formatted and minified JSON

You can compare both minified and formatted JSON. Normalized parsing helps focus on data differences, not whitespace.

FAQ

Does this work with nested objects?
Yes. Deep JSON structures are supported.

Can I compare arrays?
Yes, arrays and objects are supported in both inputs.

Is my JSON stored?
No. Comparison runs in your browser.

Related guides

How to Compare XML

How to Compare Two Texts