What does DTO-Matic generate?

TypeScript interfaces, domain entities, DTO-to-entity mappers, and Zod schemas from a JSON sample.

Yes. It is free and open source with no login.

Is my JSON sent to a server?

No. Code generation runs locally in your browser.

Does it detect dates?

Yes. It recognizes date-like fields and types them appropriately.

Which naming conventions are supported?

Multiple conventions so the generated code matches your codebase style.

DTO-Matic

JSON to TypeScript: Interface + Entity + Mapper in seconds

Help

Payload source

Generator config

Root name

Target stack

Output mode

Generates Entity + Mapper + DTO — 3-layer Clean Architecture pattern

Architectural engine

Transform raw JSON into production-ready Clean Architecture layers. Supports TS, Java, Python, Go & C#.

About this tool

DTO-Matic turns a raw JSON API response into production-ready TypeScript: interfaces, domain entities, mapper functions, and Zod schemas. Paste JSON and get clean, Clean-Architecture-friendly code with date detection and configurable naming. It removes minutes of boilerplate per endpoint.

How to use it

Paste your JSON. Drop in a sample JSON response from your API.
Choose outputs. Pick interfaces, entities, mappers, or Zod schemas and a naming convention.
Copy the generated code. Grab the TypeScript output for your project.
Wire it in. Drop the types and mappers into your codebase.

Frequently asked questions

What does DTO-Matic generate?: TypeScript interfaces, domain entities, DTO-to-entity mappers, and Zod schemas from a JSON sample.
Is it free?: Yes. It is free and open source with no login.
Is my JSON sent to a server?: No. Code generation runs locally in your browser.
Does it detect dates?: Yes. It recognizes date-like fields and types them appropriately.
Which naming conventions are supported?: Multiple conventions so the generated code matches your codebase style.