Text utilities

Merge JSON Objects

Combine two JSON objects and use the second object for overlapping keys.

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Data workspace
Data workspace

Check delimiters and structure before downloading the output.

See the method

Your source data

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Your transformed data

Your result

Let’s calculate.

Use the Calculate button to see your result.

Your content is processed locally.

How to use this tool

  1. Enter json object, second json object.
  2. Select Update result to view the result.
  3. Check the method and assumptions below before using the result.

Input reference and sample values

Use the units and choices shown for each field. Sample values are provided for practice, not as recommendations.

InputFormat and unitsSample
JSON objectKeep the structure and separators shown in the sample. Line breaks are retained in this input.{"user":{"name":"Ava","score":20}}
Second JSON objectKeep the structure and separators shown in the sample. Line breaks are retained in this input.{"active":true}

Result for these sample inputs

{
  "user": {
    "name": "Ava",
    "score": 20
  },
  "active": true
}

Processed locally. Review the output before using it.

Select Try the example in the form to load these values and calculate them again. This replaces the current form inputs. Compare the result with the method and worked explanation below.

The method, explained

Perform a shallow merge of two top-level objects. The second object replaces an overlapping value in full.

A WORKED EXAMPLE

{"a":1} plus {"a":2,"b":3} becomes {"a":2,"b":3}.

What to keep in mind

This is not a recursive deep merge. Nested objects and arrays are replaced as complete values.

Common questions

How does this tool handle my input?

Processing happens in your browser. Your pasted content is not uploaded, included in URLs or stored as a calculation history.

What input should I use?

JSON object: use the example already shown, then replace it with your own content. This is not a recursive deep merge. Nested objects and arrays are replaced as complete values.

Methodology maintained by ClarityKit. How these tools are built and checked.