Visualize, validate, and explore GraphQL schemas (SDL) offline. Features a powerful type explorer, beautifier, and syntax highlighting.
The GraphQL Schema Viewer is a powerful, offline-capable tool designed for developers to visualize, explore, and validate GraphQL schemas (SDL). Instead of reading through thousands of lines of raw SDL text, this tool parses your schema and presents it in an interactive, navigable interface.
Whether you are designing a new API, debugging an existing one, or trying to understand a third-party schema, this viewer helps you understand the relationships between types, queries, mutations, and interfaces instantly.
Paste your GraphQL SDL code into the editor or upload a .graphql file.
Use the sidebar to filter and find types. Click on any type to view its details.
Click on field types to jump to their definitions, traversing the graph effortlessly.
Use it as a quick, interactive documentation viewer for your schema without setting up a full developer portal.
Review schema changes during code reviews by pasting the new SDL and checking for breaking changes or structural issues.
Great for beginners to understand how GraphQL types, interfaces, and unions work together in a real schema.
Quickly validate syntax errors in your SDL file before deploying or running codegen tools.
Your schema never leaves your browser. Perfect for proprietary or sensitive API schemas.
See syntax errors and validation issues immediately as you type.
Navigate through nested types and complex relationships with a simple click.
Currently, it supports SDL (Schema Definition Language). You can convert introspection results to SDL using other tools and then view it here.
Yes, the editor is fully functional. You can edit the schema and the explorer will update in real-time.
The limit depends on your browser's memory, but it can handle very large enterprise-grade schemas efficiently.
No, this is a web-based tool. It works in any modern browser without plugins or installations.
Yes, it performs standard GraphQL syntax validation and alerts you to any errors in your schema definition.