GraphQL Query Builder

Build GraphQL queries and mutations visually — pick fields and arguments, get a copy-ready query string.

100% FreeNo sign-upPrivate — runs in your browser

This builds a GraphQL query or mutation string. It does not execute it against a server — paste the output into your GraphQL client to run it.

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How to use this tool

1
Choose query or mutation

Pick the operation type and optionally name the operation.

2
Set the root field

Enter the root field (e.g. users, or createUser for a mutation).

3
List the fields

One field per line. Nested selections can be written inline, e.g. posts { title }.

4
Add arguments and generate

Add arguments as key: value lines ($var for variables), then copy the finished query.

Formula & worked example

The output is: operation type + optional name + optional variable list, then the root field with arguments in parentheses, then the selected fields in braces. String arguments are quoted, numbers and booleans are not, and $variables are passed through unquoted.

query GetUsers { users(limit: 10) { id name } } is built from operation GetUsers, root field users, argument limit: 10 and fields id and name.

Limitations — read this before you rely on it

This tool builds a query or mutation string and checks brace balance only. It does not run the query, validate it against a schema, or check that fields exist on your server — an unknown field will still be emitted. Paste the output into your GraphQL client to run it.

Frequently asked questions

No. It builds the query string only. Paste it into a GraphQL client (GraphiQL, Apollo Studio, your app) to execute it.

Write the variable in the arguments list as $userId and declare it in your client as ($userId: ID!). Variables are passed through unquoted.

No. It only checks brace balance. A field that does not exist on your server will still be emitted, so check field names against your schema.

Yes — choose mutation as the operation type and use a mutation root field such as createUser.

Yes, inline — write posts { title } as one field line, or list subfields on their own lines inside the braces.