GraphQL Prettifier

Prettify, format, and minify GraphQL queries, mutations, subscriptions, and Schema Definition Language (SDL) schemas into clean, standardized code.

Why Use This Tool?

• GraphQL API Debugging: Format messy inline GraphQL queries from network request logs or cURL outputs.
• Schema Cleanup: Format GraphQL `.graphql` SDL schema files with clean 2-space indentation.
• Query Minification: Compress GraphQL query strings for production POST request payloads.

How to Use

1. Paste unformatted GraphQL query or schema.
2. Click "Prettify GraphQL" or "Minify GraphQL".
3. Copy formatted output.

Real Working Example

Input:

Unformatted Query: query GetUser($id:ID!){user(id:$id){id name email}}

Output Result:

Formatted Query:
query GetUser($id: ID!) {
  user(id: $id) {
    id
    name
    email
  }
}

Important Technical Details & Specifications

• GraphQL AST Parser: Uses official `graphql` JS AST parser and printer for syntax-valid formatting.
• Minify Mode: Strips comments and structural whitespace for compact HTTP POST request bodies.
• Local Memory Execution: Zero network overhead.

Related Developer Tools

• JSON Formatter: Prettify and format JSON.
• API Request Tester: Test REST and GraphQL endpoints.
• SQL Formatter: Format SQL queries.