Convert raw JSON objects into type-safe TypeScript interfaces, types, and Zod schemas.
1-click tested payloads for authentication, e-commerce, webhooks, and REST envelopes
export interface ProfileType {
firstName: string;
lastName: string;
role: string;
avatarUrl: string;
}
export interface UserProfile {
id: number;
username: string;
email: string;
isPro: boolean;
credits: number;
profile: ProfileType;
tags: string[];
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Create TypeScript interfaces, types, or Zod schema text from a sample JSON value. Set the root name and available optional/readonly options, then copy or download the generated code. Inferred output reflects the sample, not every possible API response.
Fast and easy from start to finish
Paste valid sample JSON and name the root definition.
Choose the output format and field options.
Review the generated definitions, then copy or download them.
What you can do with this tool
JSON input: Start from a representative sample object.
Output choices: Select interface, type, or Zod schema output.
Field options: Use the available optional and readonly controls.
Code export: Copy or download the generated definitions.
Everyday walkthroughs and starter ideas for JSON to TypeScript & Zod Converter
Paste a user object with a name and ID, then generate a UserProfile interface.
File requirements, capabilities, and system limits
Review generated code before use, especially nested arrays, optional fields, and values absent from the sample.
How creators, students, and professionals use JSON to TypeScript & Zod Converter
Draft types for a sample response.
Prepare a starting point for data validation code.
Answers to common questions about JSON to TypeScript & Zod Converter
No. Missing, nullable, or alternative values may not be represented by one sample. Review the output against your application's actual data.
No. It works from the JSON you supply and does not test a live API response.
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