Skip to content
Convert tools

JSON Merge Patch

Apply a JSON Merge Patch to a document and preview the merged result.

Convert in your browser · No sign-up

RFC 7396: null deletes a property, arrays replace whole arrays, and a non-object patch replaces the document. No prototype properties are executed.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

Result

Add your input or load an example, then run the tool. Your result will appear here.

How to use

  1. Apply a JSON Merge Patch to a document and preview the merged result.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Example

{"a":1,"b":2} + {"b":null} → {"a":1}

Details and limitations

Text stays in your browser; it is not sent to a conversion server.

Format references

Tool page updated: