GraphQL Query Builder
Build GraphQL queries/mutations visually — variables, field arguments and sub-selections, with a live preview.
About this ToolHow it works, benefits & use casesTap to collapse
Build a valid GraphQL query, mutation or subscription field by field, without hand-writing the braces. Pick the operation type, give it an optional name, and declare variables like id: ID! that you can then reference in arguments. Each field row takes a name, an optional alias, an arguments string such as "id: $id, limit: 5", and a comma-separated list of sub-fields. The builder parses those arguments intelligently — values starting with $ become variable references, numbers and true/false keep their types, and quoted text becomes strings — then assembles a properly indented operation. A live preview shows the generated query as you edit, and a stats bar reports the total field count, maximum nesting depth and the number of variables. The output is ready to copy into a client, a GraphQL playground, or a .graphql file.
How to Use
- 1Choose an Operation type (Query, Mutation or Subscription) and optionally enter an Operation name like GetUser.
- 2Add variables with "Add variable", giving each a name and a GraphQL type such as ID! or Int.
- 3Add fields with "Add field"; for each set the field name, an optional alias, arguments (e.g. id: $id, limit: 5), and sub-fields (e.g. id, name, email).
- 4Watch the live preview build the indented operation, and check the Fields / Max depth / Variables stats.
- 5Click "Build query", then copy or download the generated .graphql, or load the worked example to see the full pattern.
Key Benefits
- Builds query, mutation and subscription operations with a name and typed variables
- Per-field alias, arguments and sub-field selections without writing braces by hand
- Smart argument parsing: $variables stay as references, numbers and booleans keep their type, text is quoted
- Live, correctly-indented preview that updates as you edit
- Stats bar with total field count, maximum nesting depth and variable count
- Loadable example showing variables, nested fields and arguments together
- Output ready to paste into a client or playground, or download as query.graphql
Common Use Cases
- Prototyping a query against an unfamiliar schema before wiring it into client code
- Teaching the structure of GraphQL operations, variables and nested selections
- Generating a starting mutation with input arguments and a returned selection set
- Producing a clean .graphql document to drop into a codegen or test pipeline
- Quickly assembling a parameterised query that uses declared variables in its arguments
Operation
Variables
No variables — add one like id : ID! to use $id in args.
Fields
Live preview
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Declare the variable first (for example id with type ID!), then write it in the arguments box prefixed with a dollar sign, such as "id: $id". The parser recognises the leading $ and keeps it as a variable reference rather than quoting it, so the generated operation uses $id correctly.
For each "key: value" pair it inspects the value: anything starting with $ is a variable reference, a numeric value is treated as a number, true/false become booleans, and anything else is treated as a string (surrounding quotes are stripped and re-added). This means limit: 5 stays an int while q: hello becomes a quoted string.