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GraphQL Schema & Query Workbench

Use official GraphQL parsing and validation rules for Schema SDL and operations, explore types, generate a response skeleton and identify breaking schema changes.

Schema, query and variables stay in this browser
Nothing is uploaded, no request or resolver is executed, and anonymous events contain no SDL, field names, variables, filenames or input content.

Each of the four inputs is limited to 2 MiB. Analysis never contacts an API or remote schema.

Load a sample or paste a schema to begin

Schema structure, validation findings, operation complexity and version changes will appear here.

Heuristic complexity is not a server cost or security limit. Validate authorization, resolvers, rate limits and actual execution cost on the target GraphQL server.

About GraphQL Schema & Query Workbench

Validate contracts, operations, variables, complexity and compatibility locally. Use official GraphQL parsing and validation rules for Schema SDL and operations, explore types, generate a response skeleton and identify breaking schema changes. The core workflow is designed to run in your current browser.

Key capabilities

  • Use official GraphQL syntax, schema and operation validation rules
  • Search types, fields, arguments, descriptions and deprecations
  • Measure depth, field count, aliases and a clearly labeled heuristic score
  • Separate breaking, dangerous and safe additive changes

Useful for

  • Review a GraphQL API contract before commit or release
  • Locate unknown fields, variable and fragment problems
  • Check client compatibility before a schema upgrade

Frequently asked questions

Is GraphQL Schema & Query Workbench free to use online?

Yes. GraphQL Schema & Query Workbench opens in a modern browser and does not require desktop software installation.

What is GraphQL Schema & Query Workbench useful for?

Common use cases include Review a GraphQL API contract before commit or release; Locate unknown fields, variable and fragment problems.

Is my input or file uploaded?

The core processing workflow is designed to run locally in the browser. Key capabilities include Use official GraphQL syntax, schema and operation validation rules, Search types, fields, arguments, descriptions and deprecations, Measure depth, field count, aliases and a clearly labeled heuristic score; account, comments, and anonymous analytics may still create normal site requests.

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