Does this generator use AI?
No. It uses deterministic client-side type inference and string generation.
Turn example JSON payloads into typed models for the languages you use in QA automation, API clients, and backend services.
Inline nested types are only available when the target language supports them.
export interface Root {
id: number;
name: string;
active: boolean;
profile: RootProfile;
}
export interface RootProfile {
email: string;
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Format, validate, diff, search, and query JSON payloads in one editor-first workspace.
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OpenGenerate typed models from JSON for TypeScript, Python, Java, Go, C#, Kotlin, and Rust.
Accepted input
Accepts raw JSON, JSON arrays, schemas, or diff inputs pasted into the editor. Invalid JSON is surfaced inline before any transformation runs.
How to use
Tips
This generator infers field types directly from your JSON example and emits static code for common backend and automation languages.
It is useful for quickly scaffolding DTOs, fixtures, or typed request and response models while staying entirely in the browser.
Optional fields and nested-type handling let you shift between strict schema generation and quick exploratory modelling.
No. It uses deterministic client-side type inference and string generation.
Null values are treated as nullable or optional depending on the selected target language and options.