GraphQL Formatter & Prettifier
Format and prettify GraphQL queries, mutations, and schemas with proper indentation.
Formatted output will appear here.
Queries & Mutations
Format GraphQL queries, mutations, and subscriptions with proper nesting and indentation for readable output.
Schema Definitions
Prettify type definitions, input types, enums, interfaces, and full schema definitions with consistent formatting.
No Dependencies
Uses a lightweight custom parser that tracks brace and parenthesis depth. No external libraries, runs entirely in your browser.
How to Use GraphQL Formatter
The GraphQL Formatter prettifies queries, mutations, subscriptions, and schema definitions directly in your browser. It tracks brace and parenthesis depth to apply proper indentation without relying on any external libraries.
Open the GraphQL Formatter
Navigate to the GraphQL Formatter from the tools menu. The lightweight parser runs entirely in your browser for maximum privacy.
Paste Your GraphQL
Enter your GraphQL query, mutation, subscription, or schema definition into the input area. The tool handles nested selections, arguments, fragments, and comments.
Click Format
Click the Format button to prettify your GraphQL with proper indentation, newlines after braces, and aligned arguments.
Copy the Result
Copy the formatted GraphQL to your clipboard with one click and paste it into your GraphQL IDE, documentation, or source code.
Common Use Cases
API Query Debugging
Format compressed GraphQL queries from network logs or API monitoring tools to understand the exact fields and arguments being requested.
Schema Documentation
Prettify schema definitions for documentation pages, README files, and API reference guides so that types and fields are clearly structured.
Code Review
Standardize GraphQL query formatting before committing to version control so that diffs are clean and reviewers can focus on logic changes.
Learning GraphQL
Format example queries from tutorials and courses to see the proper structure of queries, mutations, variables, and fragments.
Pro Tips
- -Format complex nested queries to visually verify that field selections match your intended data shape.
- -Use the formatter to clean up minified queries extracted from network inspection tools before debugging.
- -Comments starting with # are preserved and properly indented in the output.
- -The formatter handles both short inline arguments and long multiline argument lists gracefully.