Convert JSON to GraphQL schema

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About this conversion

Infer a GraphQL SDL type definition from a JSON object or array. This converter processes your JSON file server-side and returns a GraphQL SDL file instantly — no account, no software installation, and no file storage. Files are deleted from our servers immediately after conversion.

How to convert JSON to GraphQL SDL

1. 1. Upload — drag your JSON file onto the converter above, or click to browse.
2. 2. Convert — press Convert. Processing happens on secure servers in seconds.
3. 3. Download — your GraphQL SDL file downloads automatically. No sign-up required.

Convert JSON to GraphQL SDL from the command line

curl --fail-with-body \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -F "file=@input.json" \
  -F "conversionId=json-to-graphql" \
  https://www.omniconvert.cloud/api/convert -o output.graphql

The API needs a token from a credit pack, and each API conversion uses one credit. Converting on this page stays free. API documentation