Validate GraphQL queries, mutations, and schemas as you type — catch unbalanced braces, malformed operations, and syntax errors before your API does.
Your GraphQL syntax is correct
Paste any GraphQL document and see syntax problems immediately: unbalanced braces and parentheses, malformed operation definitions, and structural mistakes are flagged with line numbers as you type. The validator also analyzes your document — operation type, fields, variables, and fragments — and everything runs locally in your browser, so proprietary schemas stay private.
Real-time validation and formatting
Your data never leaves your browser
No registration or subscription required
A GraphQL request with a syntax error fails at the server with an often-cryptic error message — after a full network round-trip. Validating locally catches unbalanced braces, missing arguments, and malformed operations instantly, with the exact line highlighted, so you fix mistakes before they ever reach your API.
This validator checks structure as you type and doubles as a query analyzer: it reports the operation type, field count, variables, and fragments in your document. When the query is valid, one click formats it into clean, readable shape for your codebase or documentation.
Format GraphQL schemas, queries, and mutations for better readability during API development and documentation.
Beautify GraphQL queries in React, Vue, or Angular applications for better code organization and team collaboration.
Format GraphQL queries for testing tools like GraphQL Playground, Insomnia, or Postman to ensure proper syntax.
Create well-formatted GraphQL examples for API documentation, tutorials, and developer guides.
Start using our free GraphQL formatter and beautifier today to ensure your queries are properly structured.
No registration, no tracking of your content, no server uploads. Don't just take our word for it:
Your files and text are processed entirely on your device. Nothing is ever sent to us.
Once loaded, this tool keeps working with your Wi-Fi turned off. Try it.
Open your browser's DevTools → Network tab. You'll see zero requests carrying your data.
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