JSON Diff Viewer: Compare Two JSON Documents
Compare two JSON documents and inspect added, removed or changed fields. Verify paths and value types in the source data.
This guide and page information are in English. Some controls inside the interactive tool currently appear in Turkish.
This tool processes its main input in your browser and does not send it to an external API. Fonts and interface assets may load from external providers.
JSON Diff Viewer: Compare Two JSON Documents
The JSON diff viewer highlights where two JSON structures differ. It can help review API changes, configuration edits and test fixtures.
Types and array ordering can affect a comparison. Values such as the number `1` and string `"1"` are different; review the paths and data types before acting on a result.
How to use it
- Paste the older JSON into one field and the newer version into the other.
- Run the comparison and review added, removed and changed values.
- Verify important differences against source records or version control.
Example
Input: {"active":true} → {"active":false}
Output: The active field changed from true to false.
Who is it for?
- Developers reviewing API changes
- Teams maintaining configuration files
- Test engineers comparing fixtures
Privacy and limitations
Comparison runs in this browser and the documents are not sent to an API. Use a trusted device when data is sensitive.
JSON Formatter and Validator: Fix Common Syntax Errors
Frequently asked questions
Does key order count as a difference?
Object key order is usually not semantically important, but the viewer's comparison method can affect presentation. Array order may matter.
Are 1 and "1" the same value?
No. One is a number and the other is a string; the type change can affect application behavior.
Can I export the diff?
Check the interface for available export options and verify any copied report against the source JSON.
Is my JSON uploaded?
Comparison runs in the browser and the documents are not sent to an API for the diff operation.