GraphQL Query Example Generator
Paste a GraphQL schema and generate runnable example operations — queries and mutations for any root field, with typed variables, a matching JSON block, depth-controlled selection sets and reusable fragments. Parsed entirely in your browser.
query User($id: ID!) {
user(id: $id)
}{
"id": "123"
}Reusable fragments & schema map
fragment UserFields on User {
posts {
id
}
}From schema to a runnable call
A GraphQL schema tells you everything about what a server can do, but it doesn't hand you the operation to actually call it. Writing that operation by hand means transcribing the root field, declaring its arguments as variables with exactly the right types, and then building a selection set that walks the returned object graph to the depth you care about — fiddly work that's easy to get subtly wrong, especially the $var: Type! nullability and list markers.
This generator reads the SDL directly, so every name and type in the output is real. It defaults to the production-correct pattern of typed variables — declaring $id: ID!, referencing it in the field call, and emitting a matching JSON object — because that's what keeps an operation reusable, cacheable and free of string-escaping bugs. Input-object arguments are expanded field-by-field so a mutation's payload shape is visible at a glance.
The depth control is the one knob worth understanding: scalars and enums are always selected as leaves, while object relationships are followed only as far as you allow. Depth 2 — scalar fields plus one level of nested objects — is the sweet spot for most calls; raise it when you genuinely need the deeper shape, lower it to avoid over-fetching. When you need to reuse a type's field set across several operations, grab the generated fragment instead of repeating the selection.
Explore the schema's structure first in the GraphQL Schema Visualizer, then generate calls here — and for REST APIs, the OpenAPI Documentation Generator does the equivalent job from a spec.
Trusted by API & Frontend Engineers
“Paste the SDL, pick the root field, get a correct query with typed variables and a matching JSON block. It saves me from hand-writing selection sets every time I touch a new endpoint. The depth control is exactly the right knob — 2 covers 90% of what I need.”
“The mutation support with expanded input objects is the killer feature — I can immediately see the payload shape createPost expects without digging through the schema. Variables come out as real JSON I drop straight into urql. No upload, works on our private schema.”
“Handles enums and custom scalars sensibly and never emits an empty selection set, which other generators get wrong. I'd love fragment-spread reuse inside the generated query, but the standalone fragment output already covers most of my cases.”
“I use this in workshops — paste the schema, generate examples live, copy into GraphiQL, run. It makes a new API approachable in seconds and the output is genuinely production-shaped, not toy queries. Pairs perfectly with the schema visualizer.”
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queries · mutations · typed variables · fragments · in-browser · Last reviewed: 2026-06