JSON Merge Online · LocalKit

Merge objects recursively. Arrays are replaced by the second value; null remains literal. Free json merge online, with no installation or account.

Tool capabilities

Input: TXT
Output: TXT · JSON

How to use JSON Merge

Merge objects recursively. Arrays are replaced by the second value; null remains literal. This json merge works directly in your browser and is free to use without an account.

Paste or open your input in the editor.
Run the tool and inspect the output. If the input is invalid, correct the reported error and run it again.
Copy the result or download it to your device.

JSON Merge · Example

Input

{"name":"LocalKit","active":true,"items":[{"id":2,"name":"beta"},{"id":1,"name":"alpha"}]}

Output

{
  "name": "LocalKit",
  "active": true,
  "items": [
    {
      "id": 2,
      "name": "beta"
    },
    {
      "id": 1,
      "name": "alpha"
    }
  ],
  "settings": {
    "theme": "dark"
  }
}

Merge objects recursively. Arrays are replaced by the second value; null remains literal.

Usage notes

Inputs and results are processed on this device. Tool content is not sent to a processing server.

JSON Merge