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Last updated on Apr 22, 2025

Sanity to WordPress migration: Migration process

After completing content mapping and transformation, you may choose to migrate your frontend to WordPress. With a headless WordPress setup, moving the frontend itself is optional. If you’re using WordPress only as a content API and handling the frontend separately (for example, with a JavaScript framework), you can skip this step.

Migrating frontend

However, if you plan to serve your frontend from WordPress, here’s what to consider

Selecting a new WordPress theme

WordPress offers over 13,000 free themes, providing a wealth of design choices. You can select a theme that closely matches your site’s aesthetics and then adapt it for headless delivery. This approach often speeds up the process since you’re starting with a pre-built design.

Adapting or creating a custom theme

If none of the available themes meet your needs, you might opt to develop a custom theme. This involves:

Remember

Migrating the frontend is flexible and depends on your project requirements. If your primary goal is to use WordPress solely for content management (headless mode) and maintain an external frontend, you may choose to bypass this step entirely.

This phase gives you the freedom to decide how closely integrated your frontend should be with WordPress, based on your business needs and technical strategy.

Migrating content & media

Once the backend setup is complete, the next critical step is to migrate your content and media from Sanity to WordPress. This process involves transferring textual data, images, videos, and associated metadata while ensuring that relationships and SEO value are preserved. Let’s break down how this is done, step by step.

Preparing WordPress for content import

Before importing any content, start with a fresh WordPress installation. This clean slate ensures that no legacy data interferes with the migration. Next, install and activate a custom plugin such as “Sanity to WordPress Migration” which is specifically designed to handle your import process. This plugin will automate much of the work needed to transfer data and media from Sanity into WordPress.

Sanity to WordPress plugin

Running the import command

With the plugin activated and your content mapped and transformed into a clean JSON format, you can now import your data. Here’s how you do it:

  1. Open your command line interface (CLI).
  2. Run the import command provided by the plugin. For example:
wp sanity-to-wp import --source=cleanData.json
(Note: Replace --source=cleanData.json with the actual command details as needed.)

This command reads the transformed JSON data and imports all relevant content into your WordPress setup. It creates posts, pages, or custom post types, sets metadata, and maintains content relationships as defined in your mapping strategy.

Handling media during the import

As content is imported, the plugin or script also handles media assets:

By carefully managing both textual content and media, this migration step ensures that your site’s visuals and functionality remain intact in WordPress.

Hands-on demonstration

For a practical demonstration, watch the following video where we:

Watch this demonstration to see the import process in action.

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Important note: The video covers a basic scenario focused on migrating blog content. In a real-world enterprise migration, the process may involve handling various content types, complex relationships, and additional optimizations. This example serves as a simplified introduction to help you understand the core steps.

Having successfully migrated your content and media, you now have a WordPress site populated with data from Sanity. 

Migrating backend

Backend migration focuses on transforming WordPress into a robust content engine that replicates and enhances the functionality of your existing Sanity setup. For enterprise websites, this involves handling complex custom features, workflows, and integrations. Let’s explore this process in detail.

Setting up WordPress for headless use

The first step is configuring WordPress for a headless environment, tailored to enterprise needs:

Headless configuration

Security and performance optimizations:

Mapping and recreating custom functionalities

Enterprises often leverage custom features in Sanity that need to be replicated in WordPress. This step involves:

Listing current functionalities

Recreating functionalities in WordPress

Use WordPress plugins or custom development to recreate these features. For instance:

Ensuring smooth integration with existing systems

Enterprise environments often involve complex ecosystems of tools:

Finalizing backend setup

After mapping and recreating custom functionalities:

By breaking down the backend migration into these detailed steps, we ensure that an enterprise-level Sanity to WordPress migration addresses all complexities. This comprehensive approach guarantees that WordPress not only replicates Sanity’s features but also leverages its strengths, resulting in a robust, scalable, and integrated backend environment ready to support your business needs. 

Streamline your headless WordPress setup with SnapWP🫰

If you prefer to use a frontend library other than WordPress or seek consistency between your backend and frontend, consider SnapWP. Unlike Sanity, SnapWP offers an immediate, fully functional frontend in a headless setup, reducing development and deployment efforts. This efficiency allows you to focus on creating engaging user experiences without the complexities often associated with headless CMS implementations. 

Discover how SnapWP is transforming headless WordPress.

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The next phase is testing to ensure that everything works as expected and that the site performs optimally post-migration.




Credits

Authored by Shreya Shreya Shreya Agarwal Growth Engineer