GraphQL Formatter
Format and beautify GraphQL queries, mutations, subscriptions, fragments, and SDL schema definitions with proper indentation and structure.
What is GraphQL?
GraphQL is a query language for APIs and a runtime for executing those queries, developed by Facebook in 2012 and open-sourced in 2015. Unlike REST APIs that expose fixed endpoints, GraphQL allows clients to request exactly the data they need in a single request. It has three operation types: query (read), mutation (write), and subscription (real-time updates).
Frequently Asked Questions
query is for read-only operations — fetching data. mutation is for write operations — creating, updating, or deleting data. While both technically return data, the semantic distinction matters: queries can be cached and run in parallel, while mutations are executed serially and cannot be cached.String! is a non-nullable string; [String!]! is a non-nullable list of non-nullable strings. Without !, null is a valid return value, and clients must handle it.fragment UserFields on User { id name email }. They're especially useful for sharing field selections between different queries in client-side code.Enjoying this tool?
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