GraphQL Schema Compare

Compare two GraphQL schemas side by side — SDL or introspection JSON. Spot added, removed, and changed types, fields, and enums. Runs in your browser.

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Paste or load two GraphQL schemas — SDL (.graphql) or introspection JSON — to see structural differences. Everything runs locally in your browser.

Schema A

Baseline / older version

Schema B

New / candidate version

Fetch from GraphQL endpoint (introspection)

Introspection requires CORS on the endpoint. If fetch fails, export JSON from your GraphQL Playground and paste it instead.