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Compare two JSON objects and display their differences in a readable format
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
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Tool usage guide
Pretty JSON Diff is a streamlined utility designed to compare two JSON objects side-by-side, highlighting additions, deletions, and modifications in a clean, readable format.
Background
An API endpoint started returning different data after a recent deployment, causing frontend errors.
Problem
Quickly identify which specific fields were removed or renamed in the JSON response.
How to use
Paste the old API response in the first box and the new response in the second, then compare.
Outcome
The tool highlighted that a 'user_id' field was renamed to 'uid', allowing for a rapid fix.
Background
A server configuration file was updated by a teammate, but the service failed to restart.
Problem
Find the exact line where a configuration value was changed or a syntax error was introduced.
How to use
Compare the backup configuration JSON with the current version using the 'Use Color Codes' feature.
Outcome
The diff revealed a typo in a database connection string that was invisible to the naked eye.
Yes, the tool handles large JSON objects, though performance may vary depending on the complexity and nesting depth of the data.
The tool expects valid JSON input; if your JSON is malformed, the comparison may not generate accurate results.
No, all processing is performed locally in your browser to ensure your data remains private and secure.
Typically, green indicates added fields or values, while red highlights removed or modified data.
Yes, simply uncheck the 'Show Unchanged Fields' option to focus exclusively on the differences.