GraphQL Tools
GraphQL is a query language for APIs and a runtime for fulfilling those queries. Format and pretty-print GraphQL queries, mutations, subscriptions and schema definitions, generate GraphQL type definitions from JSON samples, and explore OpenAPI / Swagger specs as UML class diagrams.
3 tools
GraphQL Formatter
Format and pretty-print GraphQL queries, mutations, subscriptions and schema definitions.
JSON to GraphQL Type Converter
Generate GraphQL type definitions from a JSON sample. Infers field types including nested objects and lists.
OpenAPI Class Explorer
Browse schemas from an OpenAPI / Swagger spec and view UML class diagrams
About GraphQL Tools
GraphQL is a query language for APIs and a runtime for fulfilling those queries. Format and pretty-print GraphQL queries, mutations, subscriptions and schema definitions, generate GraphQL type definitions from JSON samples, and explore OpenAPI / Swagger specs as UML class diagrams.
Common Use Cases
- Format GraphQL queries and schema definitions
- Generate GraphQL types from JSON API samples
- Browse OpenAPI/Swagger schemas as UML diagrams
- Pretty-print GraphQL mutations and subscriptions
- Validate GraphQL schema syntax and structure
Frequently Asked Questions
QAre these GraphQL tools free?
Yes — all 3 GraphQL tools are completely free with no account, no subscription and no paywalls. All processing runs entirely in your browser.
QDoes my data get sent to a server?
No. Every GraphQL tool processes data entirely in your browser using JavaScript and WebAssembly. Nothing you paste, type or import is transmitted to any server.
QHow many GraphQL tools are available?
There are currently 3 GraphQL tools available. Browse them all on this page or use the search bar to find a specific tool.
QDo the tools work offline?
Most tools work offline once the page has loaded, since all processing is client-side. A small number of tools that fetch external assets may require an initial network connection.
See Also
- GraphQL FormatterFormat and pretty-print GraphQL queries, mutations, subscriptions and schema definitions.
- JSON to GraphQL Type ConverterGenerate GraphQL type definitions from a JSON sample. Infers field types including nested objects and lists.
- OpenAPI Class ExplorerBrowse schemas from an OpenAPI / Swagger spec and view UML class diagrams