YAML to TypeScript Converter

Paste a YAML document and get TypeScript interfaces — the tool parses YAML to JSON and then generates typed interfaces with nested types and array element inference.

Last updated: May 27, 2026

Root interface name:

YAML Input

Generated TypeScript Interfaces

export interface Address {
  city: string;
  zip: string;
}

export interface Root {
  name: string;
  age: number;
  active: boolean;
  address: Address;
  tags: string[];
}

Client-Side Processing

Input Data Stays on Device

Instant Local Execution

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What is YAML to TypeScript Converter?

Many config-driven systems (Kubernetes manifests, Helm values, CI workflow files, Hugo configs) live as YAML, but the TypeScript code that consumes them needs typed interfaces. Writing the interface by hand for a large YAML file is mechanical work that scales poorly.

This tool internally parses YAML to a JSON value, then reuses the JSON-to-TypeScript generator to produce interfaces. The result is identical to what you would get by running JSON to TypeScript on the equivalent JSON, but you skip the intermediate conversion step.

How to Use YAML to TypeScript Converter

Paste a YAML document into the input panel.

Set the root interface name.

Copy the generated TypeScript interfaces into your project.

Common Use Cases

Typing a Kubernetes manifest or Helm values file for a TypeScript build tool.
Generating interfaces for a CI/CD workflow YAML.
Adding type safety to code that reads a YAML config.
Producing OpenAPI-style schemas from YAML examples.

Example Input and Output

A small YAML mapping becomes a TypeScript interface.

YAML input

name: Alice
age: 30
active: true
tags:
  - admin
  - active

Generated TypeScript

export interface Root {
  name: string;
  age: number;
  active: boolean;
  tags: string[];
}

Privacy

All YAML parsing and TypeScript generation happen in your browser. No content is sent to a server.

YAML coverage

The internal YAML parser handles the common subset: mappings, sequences, scalars, multi-line strings via |, and !!str / !!int implicit typing. Edge cases like anchors, aliases, and tags may not be supported.