Free, browser-based utilities for everyday developer workflows

GraphQL Query + Variables Playground

Format GraphQL operations, validate variables JSON, inspect operation metadata, and generate request-ready snippets locally.

  • Validate GraphQL operation text and variables JSON together.
  • Generate normalized request JSON, cURL, and fetch output.
  • Useful for GraphQL debugging, QA checks, and API handoff docs.

Use cases

Build a GraphQL Request Payload

Explore more in the Use cases library.

Request settings

Query

Variables JSON

Headers JSON

Operation summary

Type-
Name-
Declared vars-
Provided vars-

Request JSON

cURL

fetch snippet

How to use GraphQL Query + Variables Playground

Paste a GraphQL query or mutation into the editor, provide variables as JSON, and click Validate to check the payload structure. Generate outputs when you want a ready-to-share request JSON body, cURL command, or fetch snippet.

Common use cases

Developers use this to move quickly between GraphQL explorers and application code, QA teams use it to validate test payloads, and analysts use it to capture reproducible GraphQL examples for bug reports or docs.

Why run this in your browser?

All processing happens locally in your browser. Queries, auth headers, and variables stay on your machine.