JSON Diff
The JSON Diff tool helps you compare two JSON documents and identify what has changed between them. Find added, removed, or modified values when reviewing API responses, tracking configuration changes, testing data updates, or debugging applications. This free online JSON comparison tool makes it easier to inspect differences without checking each property manually. Paste both JSON documents to compare their contents and investigate changes.
Use your own data or load a sample to see how this tool works.
What is JSON Diff?
A JSON Diff tool compares two JSON documents and highlights differences between their structures and values. Identify added, removed, or modified data when reviewing API responses, checking configuration updates, testing application changes, or debugging structured data. Use this free online JSON comparison tool to investigate changes without manually checking every property.
Why use this tool?
- Inspect or reshape structured data without writing a script.
- Find syntax and conversion problems before the data reaches your application.
- Work with API responses, configuration files and exported data in one place.
How to use JSON Diff
- Step 1. Paste your data or load a file into the input area.
- Step 2. Run the tool and read the result or any error message.
- Step 3. Copy or download the output and check it against what your application expects.
Common use cases
Important notes
- Output depends on the input being valid, so fix syntax errors first.
- Check sensitive data handling before pasting private data into any online tool.
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JSON Diff FAQ
What is JSON Diff?
Compare two JSON documents online to identify added, removed, and changed values. Find differences in API responses and configuration data for free.
Do I need an account to use JSON Diff?
No. You can use it without creating an account.