Comparing Strapi and Sanity: Which One to Choose?

Strapi and Sanity are headless CMS platforms with different approaches to content management. Strapi is self-hosted and open-source, offering a plugin-based architecture and direct database access, while Sanity is a cloud-first SaaS solution with a managed Content Lake and real-time collaboration. Strapi uses REST and GraphQL APIs, whereas Sanity employs GROQ for flexible content queries. Strapi emphasizes control over hosting and backend logic, while Sanity focuses on a cloud-native environment with advanced content modeling.

Architecture and Schema Modeling

Strapi

Strapi uses a relational model with collections and components, similar to traditional SQL systems. You define your schema either through its admin panel or by modifying the schema.json files inside your /api directory. Once defined, Strapi generates a REST or GraphQL API.

Example: A Content Type Article is Represented as:

// /src/api/article/content-types/article/schema.json
{
"info": { "name": "Article" },
"attributes": {
"title": { "type": "string", "required": true },
"content": { "type": "richtext" },
"author": { "type": "relation", "relation": "oneToOne", "target": "api::user.user" }
}
}

This structure results in a relational schema in the database, supporting filters, relations, and population of nested content via query params.

Sanity

Sanity, on the other hand, defines schemas in JavaScript using schema-as-code. It stores documents in a document-based structure with nested fields. The schema definition is written inside schemaTypes.

// /schemas/article.js
export default {
name: 'article',
type: 'document',
title: 'Article',
fields: [
{ name: 'title', type: 'string' },
{ name: 'content', type: 'text' },
{
name: 'author',
type: 'reference',
to: [{ type: 'user' }]
}
]
}

This model supports nested, deeply structured content with flexible typing, which is more aligned with content-centric applications than rigid relational systems.

API Access and Query Language

Strapi

Strapi generates REST and GraphQL APIs out of the box for each content type, with documentation via Swagger or GraphQL Playground. Each content type corresponds to a URL like:

GET /api/articles POST /api/articles

With GraphQL, you can use filters and deep queries like:

query {
articles(filters: { title: { contains: "CMS" } }) {
data {
attributes {
title
content
author {
data {
attributes {
name
}
}
}
}
}
}
}

Sanity

Sanity does not expose a REST or GraphQL API by default. Instead, it provides GROQ (Graph-Relational Object Queries), a proprietary JSON-based query language that interacts with the document store.

Example GROQ Query:

*[_type == "article" && title match "CMS*"]{
title,
content,
author->{name}
}

GROQ is powerful and expressive, allowing inline projections, conditional logic, and content slicing, but it is unique to Sanity and has a learning curve.

Real-Time Editing and Content Collaboration

Strapi

Strapi does not support real-time collaborative editing out of the box. Content is updated through the API or admin panel, and changes require page reloads or manual sync if you"re building a live frontend.

Sanity

Sanity excels here"it includes real-time collaboration and presence tracking using WebSocket-based sync. The Studio UI updates live across sessions. When two editors work on the same document, changes are instantly reflected, and presence indicators show who is editing which field.

Extensibility and Plugin System

Strapi

Strapi has a robust plugin system. You can install plugins like strapi-plugin-i18n, strapi-plugin-users-permissions, or create your own. The backend is built on Koa, and you can write custom middleware, routes, controllers, or extend GraphQL resolvers.

Example: Adding a custom route

// /src/api/article/routes/custom.js
module.exports = {
routes: [
{
method: 'GET',
path: '/articles/summary',
handler: 'article.customSummary'
}
]
};

Sanity

Sanity is also extendable but differently. The entire Studio (admin UI) is customizable with React components. You can override input fields, create custom preview panes, or even embed live video editors using React. There"s no plugin marketplace like Strapi; most customizations are code-level.

Example: Custom Input Field

import React from 'react'
import { FormField } from '@sanity/base/components'

export const CustomInput = React.forwardRef((props, ref) => {
return (
<FormField label="Custom Field">
<input ref={ref} type="text" onChange={e => props.onChange(e.target.value)} />
</FormField>
)
})

Deployment and Hosting Considerations

Strapi

Strapi can be self-hosted on any Node.js environment. You need to provision the database (PostgreSQL, MySQL, SQLite) and host the admin backend yourself. It's compatible with traditional PaaS platforms like Heroku, Northflank, or Vercel (via serverless adapters).

Sanity

Sanity is SaaS-first. The Studio can be deployed anywhere (Netlify or Vercel), but the content backend (dataset, real-time engine, CDN is hosted on Sanity"s infrastructure. This removes DB management but adds a platform dependency.

Which One to Choose?

Choose Strapi if:

• You need relational data models and SQL-style relations.
• Your developers prefer REST or GraphQL with standard tooling.
• You want full control over hosting and backend logic.
• Plugin support and backend extensibility are critical.

Choose Sanity if:

• Your content is unstructured, deeply nested, or document-based.
• You require real-time collaboration and live presence features.
• You want to customize the admin UI with React.
• Hosting on a managed platform is acceptable or preferred.

Both are capable, but they solve different architectural problems. The choice depends on how structured your content is, how your team works, and whether you prioritize schema flexibility or infrastructure control.

Comparison Table : Key Differences