GraphQL Explorer & Query Validator

Inspect GraphQL SDL or introspection JSON, list types and root fields, validate a copied operation's selections, and create a JSON variables template without calling an endpoint.

Runs locally in your browser

Parsing and analysis run entirely in your browser. No data is uploaded or sent to an API.

Schema or introspection JSON

Operation to validate

This is a schema and query helper. It does not send the operation, variables, or schema to a GraphQL endpoint.

Schema summary

Paste a schema to inspect types, root fields, and a local operation.

Variables template

Types and root fields

Paste a schema to inspect types, root fields, and a local operation.

Validate GraphQL structure before using an API client

The explorer identifies common SDL and introspection structures, checks root fields, and creates a starting variables object. It is not a replacement for server-side GraphQL validation.