Generate Kotlin @Serializable data classes with @SerialName annotations from JSON.
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 JSON response into the workspace.
Specify the root Kotlin data class name.
Copy or download the .kt source file.
The generated classes are built for `kotlinx.serialization` (the official Kotlin multiplatform standard).
Yes, nullable JSON properties are declared with Kotlin nullable types (`String?`, `Any?`).
Zero-egress companion tools in the Developer Tools suite
Format, validate, repair, and minify JSON data instantly.
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Test regex patterns with flags, group captures, and live matches.
Compare text or source code side-by-side with visual diffs.
