Sample GraphQL Schema Generator
Generate sample GraphQL schema files with types, queries, mutations, and subscriptions
✨ Generated locally in your browser
Ready-to-Download Samples
Download pre-built sample files instantly. No configuration needed.
Minimal Schema
Basic Query type with single field (~200 bytes)
BasicSimple CRUD
Basic User type with CRUD operations (~500 bytes)
BasicSchema with Enums
Types with enum values and status fields (~700 bytes)
BasicBlog CMS Schema
Complete blog with posts, comments, categories (~2 KB)
CMSE-Commerce Schema
Products, orders, cart, payments (~3 KB)
E-CommerceSocial Media Schema
Users, posts, followers, likes, messages (~2.5 KB)
SocialCreate Custom File
Configure your own file with custom settings and content
Generate professional GraphQL schema files in seconds. Whether you need a complete e-commerce API schema, a blog CMS schema, or a social media platform schema—our free generator creates production-ready SDL files instantly.
What is a GraphQL Schema?
A GraphQL schema is the blueprint of your API written in Schema Definition Language (SDL). It defines all the types of data available, their relationships, and the operations clients can perform. Unlike REST APIs, GraphQL schemas are strongly typed, self-documenting, and allow clients to request exactly the data they need. The schema serves as the single source of truth for your API, enabling powerful tooling like auto-completion, validation, and documentation generation.
Why Use Sample GraphQL Schemas?
Bootstrap new GraphQL API projects quickly with proven schema patterns
Learn GraphQL SDL syntax with real-world examples
Test GraphQL clients and tools without building a full backend
Create API documentation and prototypes for stakeholder review
Explore different schema design patterns (pagination, federation, etc.)
Generate type definitions for frontend frameworks like Apollo Client
Validate schema designs before implementation
Train team members on GraphQL best practices
Common Use Cases
API Development
Start new GraphQL API projects with a complete, well-structured schema. Includes types, queries, mutations, and optional subscriptions following industry best practices.
Frontend Development
Generate schemas for frontend teams to develop against before the backend is complete. Use with Apollo Client mock links or graphql-tools mock resolvers.
Learning & Training
Understand GraphQL concepts like types, interfaces, enums, and input types through practical examples. Perfect for developers new to GraphQL.
API Documentation
Create schema files for documentation tools like GraphQL Voyager, SpectaQL, or GraphDoc. Visualize your API structure and generate beautiful docs.
Schema Migration
Use as reference when migrating from REST to GraphQL. Compare different schema designs and adopt patterns that fit your use case.
Code Generation
Generate schemas for tools like GraphQL Code Generator to create TypeScript types, React hooks, or resolver type definitions automatically.
Features
Multiple schema templates: Blog, E-Commerce, Social Media, API Management
Complete CRUD operations with Query and Mutation types
Optional Subscription types for real-time functionality
Enum types for status fields and constants
Input types for mutation arguments
Interface types for shared fields (Node, Timestamped)
Pagination support with connection/edge pattern
Custom scalar types (DateTime, Email, URL)
Custom directives (@auth, @cacheControl)
Relay-compliant schema patterns
Apollo Federation support for microservices
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Frequently Asked Questions
What is a GraphQL schema?
A GraphQL schema defines the structure of your API using the Schema Definition Language (SDL). It describes the types of data available, how they relate to each other, and what operations (queries, mutations, subscriptions) clients can perform. The schema serves as a contract between your API and its consumers.
What file extension do GraphQL schemas use?
GraphQL schemas typically use the .graphql or .gql extension. The .graphql extension is more common and widely recognized by IDEs, linters, and build tools. Some projects split schemas into multiple files (like schema.graphql, types.graphql, mutations.graphql) for better organization.
What are the main components of a GraphQL schema?
A GraphQL schema consists of: Types (object types, scalar types, enum types, input types, interface types, union types), Query type (for read operations), Mutation type (for write operations), Subscription type (for real-time updates), and Directives (metadata for schema elements like @deprecated or custom auth directives).
How do I use these sample GraphQL schemas?
You can use these schemas with GraphQL servers like Apollo Server, Yoga, or Mercurius. Import the .graphql file using graphql-tools or your framework's schema loader. For development, you can also use these schemas with GraphQL Playground or Apollo Studio to explore the API structure.
What is the difference between Query and Mutation?
Query operations are used for reading data and should not have side effects (like fetching a user profile). Mutation operations are used for creating, updating, or deleting data (like creating a new post or updating a user). Both can accept arguments and return data, but their semantic meaning differs.
What are GraphQL subscriptions used for?
Subscriptions enable real-time updates by maintaining a persistent connection between client and server. When data changes on the server, subscribed clients receive updates automatically. Common use cases include live chat, notifications, real-time collaboration, and live data feeds.