GraphQL Query Builder

Build GraphQL queries, mutations and subscriptions visually with fields, aliases and arguments.

id
name
email
posts
query GetUsers {
  users(limit: 10, offset: 0) {
    id
    name
  }
}

Frequently Asked Questions

What can I build with the GraphQL Query Builder?

You can build query, mutation, and subscription operations with root fields, arguments, aliases, and nested subfields.

Does it support variables?

The current version embeds arguments inline. Variable support ($var: Type) is planned for a future update.

Can I send the query to a GraphQL endpoint?

Not directly — this tool generates the query string. Copy it and use it in your GraphQL client (Apollo, Relay, Insomnia, etc.).

Is there a query executor?

No. This is a query builder only. For a full playground, consider GraphiQL or Apollo Sandbox.

What is GraphQL?

GraphQL is a query language for APIs, developed by Facebook (now Meta) in 2012 and open-sourced in 2015. Unlike REST, where each endpoint returns a fixed data shape, GraphQL lets the client specify exactly which fields it needs — nothing more, nothing less. The server exposes a single endpoint and responds with precisely the requested data.

GraphQL vs REST

AspectRESTGraphQL
EndpointsOne per resource (/users, /posts)Single endpoint (/graphql)
Data fetchingServer decides response shapeClient decides exact fields needed
Over-fetchingCommon (unused fields returned)Eliminated by design
Under-fetchingRequires multiple requestsOne request for nested data
Type systemOptional (OpenAPI)Built-in, enforced schema
VersioningURL versioning (/v2/users)Evolve schema without versioning
SubscriptionsSSE / WebSocket (custom)First-class via WebSocket

Anatomy of a GraphQL Query

query GetUser($id: ID!) {
  user(id: $id) {
    id
    name
    email
    posts(last: 5) {
      title
      publishedAt
      author {
        name
      }
    }
  }
}
  • query — operation type (also mutation, subscription).
  • GetUser — optional operation name for debugging and caching.
  • ($id: ID!) — variable declaration; ! means required.
  • user(id: $id) — root field with an argument.
  • Nested posts — related data fetched in the same request, no extra round-trip.