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How can I create a custom block in the WordPress block editor?

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How can I create a custom block in the WordPress block editor?

Asked on Mar 10, 2026

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Creating a custom block in the WordPress block editor involves using the Block API, which allows developers to define new blocks with custom functionality and styles. This process typically requires some knowledge of JavaScript and React, as the block editor is built using these technologies.

<!-- BEGIN COPY / PASTE -->
    // Register a new block type
    wp.blocks.registerBlockType('my-plugin/my-custom-block', {
      title: 'My Custom Block',
      icon: 'smiley',
      category: 'common',
      edit: function() {
        return wp.element.createElement('p', {}, 'Hello, World!');
      },
      save: function() {
        return wp.element.createElement('p', {}, 'Hello, World!');
      }
    });
    <!-- END COPY / PASTE -->

Additional Comment:

Ensure you have a development environment set up with Node.js and npm to build your block.
Use the WordPress @wordpress/scripts package to simplify the build process.
Consider using the create-guten-block toolkit for a streamlined setup.
Test your block thoroughly in the block editor to ensure compatibility and functionality.

✅ Answered with WordPress best practices.

Ask any question about WordPress here... and get an instant response.

How can I create a custom block in the WordPress block editor?

Asked on Mar 10, 2026

Answer

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