GraphQL Playground

GraphQL Playground is an interactive development environment for building and testing GraphQL APIs. It provides a graphical interface where developers can write queries, explore schema documentation in multiple columns, and view real‑time results, including support for GraphQL Subscriptions. The IDE includes context‑aware autocompletion, error highlighting, and automatic schema reloading, which help streamline local development workflows.

The tool integrates with GraphQL Config to manage multiple projects and endpoints, and it allows configuration of HTTP headers and query history for easier testing across different environments. Apollo Tracing support is also built in, giving insight into resolver performance. Installation on macOS can be performed via Homebrew, and the project offers React, Express, Koa, Hapi, Lambda, and Electron packages for embedding the playground in various runtimes.

Security considerations are documented, noting a past XSS reflection vulnerability that was addressed in version 1.6.22 of the core HTML package and subsequent releases of the middleware wrappers. The repository includes guidance on safe usage and examples of the issue.