Convert raw JSON payloads into typed GraphQL SDL definitions and Query schemas.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Paste your raw API JSON response or mock data object.
Specify the root GraphQL type name and toggle Non-Null (!) enforcement.
Copy the generated GraphQL Schema Definition Language or download it as a .graphql file.
Nested JSON objects are automatically extracted into modular GraphQL sub-types with proper parent-child references.
Yes, you can copy the SDL with one click or download it directly as a .graphql file.
Zero-egress companion tools in the Developer Tools suite
Format, validate, repair, and minify JSON data instantly.
Decode, verify claims, inspect headers, and check token expiry.
Test regex patterns with flags, group captures, and live matches.
Compare text or source code side-by-side with visual diffs.