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JSON Merge Patch Applier

Apply RFC 7396-style object merge patches with null deletion.

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A useful toolkit for text, data, images and calculations.

  1. 01

    Add your input

    Choose a tool, enter values or select a file.

  2. 02

    Make it yours

    Adjust the options and run the action.

  3. 03

    Take the result

    Copy the result or download its file.

RFC 7396 merge patch tool online

Apply RFC 7396-style object merge patches with null deletion. Use this when inspecting or preparing text and structured data. Test the included sample first, then replace it with a small representative part of your own input.

How to use it

Paste your input. Supply merge patch json. Choose Run tool and review the result. Copy or download the output when it matches your requirements.

Worked examples

Use this when inspecting or preparing text and structured data. Test the included sample first, then replace it with a small representative part of your own input.

Reproducible sample

Settings: No additional settings.

Input:

{"a":1,"b":2,"nested":{"x":1}}

Merge patch JSON:
{"a":null,"nested":{"y":2}}

With the settings above, the output is:

Output:

{
  "b": 2,
  "nested": {
    "x": 1,
    "y": 2
  }
}

For this input, “b” is 2. These are the named fields in the example output.

Choose the right tool

A null field in an object patch deletes that field under the supported merge rules. This is different from merging two objects while retaining null as data.

Limitations and common mistakes

  • Null removes an object property; arrays are replaced as whole values.
  • Inputs are limited to 250,000 characters in total. Invalid input is reported rather than silently corrected.

Frequently asked questions

How can I check the result?

Run the fixed worked example with the documented settings, compare its output, then check your own input format and units before copying a result.

Does this require an account?

No. This bundled tool runs in your browser without a conversion account.

How can I apply RFC 7396-style object merge patches with null deletion in JSON online?

Paste your input. Supply merge patch json. Choose Run tool and review the result. Copy or download the output when it matches your requirements.

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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