Payload CMS

Payload CMS is a modern, open source headless content management system and application framework built with TypeScript and Node.js. Designed from the ground up with developer experience as the top priority, Payload takes a code-first approach where the entire CMS configuration is defined in TypeScript, making it version-controllable, type-safe, and deeply integrated with modern development workflows.

The defining characteristic of Payload is its config-driven architecture. Instead of configuring the CMS through a web interface, developers define their content model, field types, access control rules, hooks, and email templates in a single typed configuration file. This approach provides complete transparency into how the system is configured, enables code reviews of CMS changes, and allows the configuration to evolve alongside the application codebase.

Payload's field system is comprehensive and type-safe. Available field types include text, number, email, date, textarea, rich text (using Slate.js or Lexical), select, radio, checkbox, upload, relationship, array, blocks, tabs, collapsible, row, code, and JSON. All fields are fully typed in TypeScript, and adding a field to the configuration automatically updates the generated types, the database schema, and the admin interface simultaneously.

The blocks field type is particularly powerful. It allows editors to compose flexible, modular page layouts from a predefined set of block types. This enables content editors to build rich, varied page structures without developer intervention, making Payload an excellent foundation for page builder functionality and component-driven content architectures.

Access control in Payload is code-defined and highly granular. Access functions are TypeScript functions that receive the request context and return a boolean or a query constraint. This enables complex access patterns such as allowing users to read only their own content, restricting specific fields based on user roles, and implementing multi-tenancy within a single Payload instance.

The hooks system in Payload allows developers to intercept and modify data at every stage of the lifecycle, including before validation, before change, after change, before read, and after read. Hooks can be asynchronous and have access to the full request context, making it practical to implement business logic, send notifications, sync data to external services, and perform complex transformations.

Payload provides a powerful local API alongside its REST and GraphQL APIs. The local API allows queries and mutations to be performed directly in Node.js server code without the HTTP overhead, with full access to Payload's access control, hooks, and validation. This makes Payload a strong foundation for API routes, server-rendered pages, and background jobs in Next.js and other full-stack frameworks.

The admin interface is a React application that is fully customizable through the configuration. Custom React components can be added for individual fields, entire collections, the navigation, and the dashboard, allowing teams to build tailored editorial interfaces without forking the core code.

Payload supports both MongoDB and PostgreSQL as database backends, with SQLite support available for development and lightweight deployments. It can be deployed on any Node.js-compatible infrastructure and is increasingly popular as a companion backend for Next.js applications thanks to its seamless local API integration.