JSON Compare
Paste two JSON objects and instantly see every structural and value difference — privacy-first, no upload needed.
🔒 100% client-side — your data never leaves your browser
Original JSON
Modified JSON
Semantic Diff
Understands JSON structure
JSONPath
Exact path for every change
Diff Stats
Added, removed, modified counts
100% Private
No data leaves your browser
Why use a Semantic JSON Compare Tool?
Comparing JSON files isn't as simple as comparing text. A standard text diff tool might flag a change just because keys are in a different order or indentation has changed. Our Semantic JSON Compare tool parses the code structure to understand what actually changed.
Whether you are debugging API responses, verifying configuration files (like Kubernetes manifests or Terraform plans), or checking data migration results, this tool highlights meaningful differences while ignoring noise.
Key Features
- Semantic AwarenessUnderstands structure, data types, and nesting.
- Ignore Key OrderCompare objects regardless of property sort order.
- JSONPath TrackingSee the exact path (e.g. $.users[0].id) for every change.
- JSON Patch ExportDownload differences in RFC 6902 patch format.
- Privacy First100% client-side processing. Your data stays local.
- Auto-FormattingInstantly beautify minified JSON for readability.
Frequently Asked Questions
How does 'Ignore Key Order' work?
In JSON, object keys {a:1, b:2} and {b:2, a:1} are semantically equal. Standard text diffs fail here. Our tool sorts keys internally before comparing, so you only see actual data changes.
Does it work with large files?
Yes, we use efficient recursive algorithms optimized for modern browsers. You can comfortably compare files up to several megabytes in size.
What is the difference between Red, Green, and Yellow?
Red indicates a removed property/value. Green indicates a newly added property/value. Yellow indicates a modification where the key exists in both but the value has changed.
Can I use this for API testing?
Absolutely. Paste your 'Expected' JSON on the left and 'Actual' JSON on the right to instantly spot regressions or unexpected fields.