JSON Validator

JSON GraphQL Type Validator — Validate GraphQL Type Format in JSON

Free online JSON graphql type validator. Validate graphql type format in JSON data with instant pattern checking. 100% browser-based — your data stays private.

What Is This?

JSON is a flexible data format, but when you need to store graphql type values, they should follow a consistent pattern. Our JSON GraphQL Type format validator checks if graphql type strings in your JSON data match the expected format: TypeName or TypeName!. All validation happens in your browser — your JSON never leaves your device.

How to Use

1

Enter your JSON

Paste your JSON data containing the values you want to validate.

2

Select format

The validator automatically checks for GraphQL Type format: User!.

3

Review results

Invalid values are highlighted with specific error messages for easy correction.

Examples

GraphQL Type Example

User!

Valid Usage

To validate graphql type format in your JSON data, paste your JSON string into the validator. The tool scans every string value and checks if it matches the graphql type pattern. Invalid values are highlighted with explanations, making it easy to fix data quality issues in your JSON documents.

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Frequently Asked Questions

What is a valid GraphQL Type format?

A valid GraphQL Type format follows the pattern: TypeName or TypeName!. Example: User!.

Does validation work on nested JSON?

Yes, the validator scans all string values at any depth in your JSON structure.

Is my JSON data uploaded anywhere?

No, all processing happens client-side. Your data never reaches any server.

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