Sanity vs WordPress: Which CMS Should You Choose?

Choose Sanity if you have a developer, want a custom front end built with a framework like Next.js or Astro, and need structured content that can be reused across a website, an app and other channels. Choose WordPress if you want a site running quickly with themes and plugins, need non-technical owners to control layouts and features themselves, or have a tight budget for development. The core difference is that WordPress is a complete website platform, while Sanity is a headless content backend that leaves the website entirely up to you.

Both are excellent tools, and the right answer depends far more on your team and your project than on any feature list. This article compares how they're built, what editing feels like, how content is modelled, performance, security, cost, hosting and migration, and ends with a simple decision guide for common scenarios.

The Fundamental Difference

WordPress is an open-source PHP application that you install on a web server with a MySQL or MariaDB database. It manages content, renders pages with themes and extends with plugins. You get a working website the moment it's installed. The what is WordPress guide covers its architecture.

Sanity is a hosted content platform. Content lives in Sanity's Content Lake, editors use Sanity Studio (an open-source React app), and your website fetches content through an API. There's no theme, no page rendering and no server for you to maintain on the content side. If you're new to it, start with what is Sanity.

	WordPress	Sanity
Type	Monolithic CMS (headless optional)	Headless CMS
Language	PHP	JavaScript/TypeScript
Content storage	Your MySQL/MariaDB database	Hosted Content Lake
Front end	Themes, block editor	Anything you build
Content model	Posts, pages, custom post types, custom fields	Fully custom schemas in code
Rich text storage	HTML with block comments	Portable Text (JSON)
Extensions	Tens of thousands of plugins	Studio plugins, custom code
Hosting	You (or managed WordPress host)	Sanity hosts content; you host the site
Licence	GPL, free	Studio is open source; Content Lake is a paid-tiered service with a free plan

Editing Experience

WordPress

WordPress editors use the block editor (Gutenberg). It's a visual, page-oriented experience: you add paragraphs, images, columns and buttons, and see roughly what the published page will look like. With block themes and full site editing, owners can change headers, footers and templates without code. That's powerful for marketing teams who want independence from developers.

The downside is that content and presentation are mixed. A blog post saved in WordPress is HTML with layout decisions baked in, which makes it harder to reuse in an app or a different design.

Sanity

Sanity Studio is form-based by default. Editors see the fields a developer defined, such as title, slug, hero image, author and body. It feels more like filling in a well-designed form than designing a page. Real-time collaboration is built in: multiple people can edit the same document at once and see each other's changes live.

For visual editing, Sanity's Presentation tool shows your actual front end beside the form with click-to-edit overlays, but a developer has to set this up. The Sanity Studio walkthrough shows what editors see day to day.

In short: WordPress gives editors layout control out of the box. Sanity gives editors a cleaner, structured workflow and gives developers control over presentation.

Content Modelling

This is where Sanity is strongest.

In WordPress, you start with posts and pages, then add custom post types and custom fields (often through a plugin like Advanced Custom Fields) for anything else. It works, but the model is shaped around posts, and metadata is stored in a generic key-value table. The post on custom post types shows the WordPress approach.

In Sanity, you define every content type from scratch in TypeScript:

// schemaTypes/event.ts
import { defineField, defineType } from 'sanity'

export const event = defineType({
  name: 'event',
  title: 'Event',
  type: 'document',
  fields: [
    defineField({ name: 'name', type: 'string', validation: (rule) => rule.required() }),
    defineField({ name: 'slug', type: 'slug', options: { source: 'name' } }),
    defineField({ name: 'startsAt', type: 'datetime' }),
    defineField({ name: 'venue', type: 'reference', to: [{ type: 'venue' }] }),
    defineField({
      name: 'speakers',
      type: 'array',
      of: [{ type: 'reference', to: [{ type: 'person' }] }],
    }),
  ],
})

References between documents are first-class, so an event can point to a venue and several speakers, and a single GROQ query can return all of it:

*[_type == "event" && startsAt > now()] | order(startsAt asc){
  name,
  startsAt,
  "venue": venue->name,
  "speakers": speakers[]->name
}

Because schemas are code, they're version-controlled, reviewed in pull requests and deployed with your app. There's no clicking through admin screens to recreate a field on a staging site.

Performance

WordPress renders pages with PHP on every request unless you add caching. A well-configured site with page caching and a CDN is fast, but performance depends on your host, theme and plugins. Heavy page builders and many plugins are a common cause of slow sites. See how to speed up WordPress for typical fixes.

Sanity doesn't serve your pages at all. Your front end decides how pages are built: static generation, incremental revalidation or server rendering at the edge. Content requests can go through Sanity's API CDN. In practice, a Next.js or Astro site backed by Sanity is usually very fast, but that speed comes from the front end you build, not from Sanity itself.

Security and Maintenance

WordPress is a frequent target simply because it's so widely used. Most real-world compromises come from outdated plugins and themes, weak passwords or poor hosting. You're responsible for updates, backups, file permissions and hardening. This blog has a whole series on it, starting with how to make a WordPress website secure.

Sanity removes most of that work on the content side. There's no PHP, no database and no admin login on your web server to attack, and the Content Lake is maintained by Sanity. Your remaining responsibilities are your front-end code, your API tokens and your project's user access. A static front end has a very small attack surface.

Task	WordPress	Sanity
Core updates	You (or your host)	Sanity, and Studio can auto-update
Plugin vulnerabilities	Common risk	Fewer, smaller plugins, mostly in Studio
Database backups	You	Sanity runs the database; you can export datasets with the CLI
Server hardening	You	Only for your front-end host

Cost

WordPress software is free, but a real site costs money: hosting, a domain, premium themes or plugins, and developer time. The post on how much a WordPress website costs breaks this down, and is WordPress free explains where costs appear.

Sanity has a free plan that's enough for many small sites, then paid plans priced per seat with usage quotas for documents, API requests and bandwidth. You also pay to host your front end, though many static hosts have free tiers. The bigger cost is usually development: a custom front end takes longer to build than installing a theme. The Sanity pricing guide explains each plan.

Hosting and Deployment

With WordPress you need a PHP host and a database, and you deploy changes by updating files or using a staging workflow.

With Sanity you have two separate deployments:

1. The Studio: deploy it to a free *.sanity.studio URL with one command, or embed it in your app.
2. The front end: deploy to any static or serverless host, such as Vercel, Netlify or Cloudflare.

# Deploy the Studio to Sanity's hosting
npx sanity deploy

The guide on how to deploy Sanity Studio covers both hosted and self-hosted options.

Using Them Together: Headless WordPress

There's a middle ground. You can run WordPress as a headless CMS, keeping the familiar admin but serving content through the REST API or WPGraphQL to a Next.js front end. This suits teams with existing WordPress content and editors who don't want to change tools. The guides on headless WordPress and WordPress with Next.js cover the setup.

Compared with Sanity, headless WordPress keeps the PHP server and plugin maintenance, and its content model is still post-centric, but it avoids a migration.

Migrating from WordPress to Sanity

If you decide to move, the process usually looks like this:

1. Model your content in Sanity schemas, mapping post types and custom fields to document types.
2. Export WordPress content through the REST API or a WXR export file.
3. Convert HTML to Portable Text, using a tool such as @portabletext/block-tools. The HTML to Portable Text guide shows how.
4. Upload images to Sanity's asset pipeline and replace URLs with asset references.
5. Import documents with the CLI or a script using @sanity/client.
6. Set up redirects so old URLs keep working.

Expect the HTML conversion and shortcode handling to take the most effort.

Which Should You Choose?

Scenario	Better fit
Small business site, no developer	WordPress
Blog you want live this week	WordPress
Owner wants to change layouts without code	WordPress
WooCommerce shop with many plugins	WordPress
Marketing site built in Next.js or Astro	Sanity
Content shared across web, app and email	Sanity
Complex structured content (products, events, docs)	Sanity
Large editorial team needing real-time collaboration	Sanity
Minimal server maintenance	Sanity
Existing WordPress site with lots of content and plugins	Stay on WordPress, or go headless

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FAQ: Sanity vs WordPress

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Conclusion

WordPress is a complete website platform: install it, pick a theme, add plugins and you're live, with owners able to change almost everything themselves. Sanity is a headless content backend: you model content in code, editors work in a tailored Studio and developers build the front end with whatever framework they prefer.

If you have development resources and content that needs structure, reuse or a custom front end, Sanity is the more flexible long-term foundation. If you need a site quickly, depend on the plugin ecosystem or want non-developers in control of design, WordPress remains the practical choice.