JSON Diff Checker
Compare two JSON payloads and inspect changed keys quickly.
Compare payloads
Paste two JSON values to inspect added, removed, and changed paths.
Difference rows
Path-based output is easier to scan than raw payload blocks.
same
$.name
Left: Ava
Right: Ava
changed
$.plan
Left: starter
Right: pro
same
$.active
Left: true
Right: true
added
$.team
Left: -
Right: growth
Common use cases
- Reviewing API response changes
- Comparing payload revisions during debugging
- Checking config differences before release
FAQ
Does this compare nested JSON too?
Yes. The diff output includes nested paths so you can inspect changes deeper in the payload.
Can I use it for arrays?
Yes. Arrays are compared by index in this first version, which is practical for many API and config workflows.
How it works
A browser-based JSON diff tool for spotting added, removed, and changed fields without leaving the page. The result is produced immediately so you can review it before copying or using it elsewhere.
Privacy
The tool is designed to process ordinary input in your browser. Avoid pasting passwords, private keys, access tokens, personal records, or other sensitive production data into any online utility.
Limitations
This utility handles the focused workflow described on this page. Check the result before production use, especially when an input depends on a vendor-specific format, security rule, or external standard.