JSON to TypeScript
About This Tool
Stop writing TypeScript interfaces manually. This tool takes any JSON object—no matter how nested or complex—and auto-generates the corresponding TypeScript interfaces or type definitions. It intelligently determines types (string, number, boolean, arrays) and creates optional properties where nulls are detected. It's a massive time-saver for consuming external APIs. This tool is essential for modern developers who work with multiple data formats, APIs, and code structures daily. It eliminates the tedious manual work of formatting, converting, and validating code, allowing you to focus on actual development. The tool follows industry standards and best practices, ensuring your output is compatible with all major platforms and frameworks. Whether you're debugging, preparing API requests, or cleaning up data, this utility handles the heavy lifting. It's perfect for full-stack developers, DevOps engineers, data scientists, and anyone working with code and structured data regularly. Our algorithms are optimized for performance, ensuring instant results even for complex calculations. We are committed to providing free, high-quality tools to help you be more productive. Our platform is dedicated to simplifying your digital life with an extensive collection of utilities that are always available at your fingertips, completely free of charge and without any registration requirements. We believe in open access to technology for everyone.
How to Use This Tool
Input JSON
Paste your API response or data object.
Generate
The tool analyzes the structure.
Copy Code
Get the complete interface definitions.
Key Features
- Nested Types: Recursively generates interfaces for deep objects.
- Type Detection: Distinguishes between strings, numbers, and booleans.
- Naming Control: Define the root interface name.
- Copy Ready: Paste directly into your .d.ts or .ts files.
Common Use Cases
Why This Tool Matters
TypeScript adds safety, but defining types is tedious. This tool automates the boilerplate so you can focus on logic.
Frequently Asked Questions
Does it handle arrays?
Yes, it inspects array contents to generate typed arrays (e.g., `User[]`).
Is data secure?
Yes, all calculations happen in your browser. We do not store any employee data.
Is this tool free?
Yes, completely free to use.
JSON to TypeScript
Generate TypeScript interfaces from JSON.
TypeScript interface will appear here...
About This Tool
Stop writing TypeScript interfaces manually. This tool takes any JSON object—no matter how nested or complex—and auto-generates the corresponding TypeScript interfaces or type definitions. It intelligently determines types (string, number, boolean, arrays) and creates optional properties where nulls are detected. It's a massive time-saver for consuming external APIs. This tool is essential for modern developers who work with multiple data formats, APIs, and code structures daily. It eliminates the tedious manual work of formatting, converting, and validating code, allowing you to focus on actual development. The tool follows industry standards and best practices, ensuring your output is compatible with all major platforms and frameworks. Whether you're debugging, preparing API requests, or cleaning up data, this utility handles the heavy lifting. It's perfect for full-stack developers, DevOps engineers, data scientists, and anyone working with code and structured data regularly. Our algorithms are optimized for performance, ensuring instant results even for complex calculations. We are committed to providing free, high-quality tools to help you be more productive. Our platform is dedicated to simplifying your digital life with an extensive collection of utilities that are always available at your fingertips, completely free of charge and without any registration requirements. We believe in open access to technology for everyone.
How to Use This Tool
Input JSON
Paste your API response or data object.
Generate
The tool analyzes the structure.
Copy Code
Get the complete interface definitions.
Key Features
- Nested Types: Recursively generates interfaces for deep objects.
- Type Detection: Distinguishes between strings, numbers, and booleans.
- Naming Control: Define the root interface name.
- Copy Ready: Paste directly into your .d.ts or .ts files.
Common Use Cases
Why This Tool Matters
TypeScript adds safety, but defining types is tedious. This tool automates the boilerplate so you can focus on logic.
Frequently Asked Questions
Does it handle arrays?
Yes, it inspects array contents to generate typed arrays (e.g., `User[]`).
Is data secure?
Yes, all calculations happen in your browser. We do not store any employee data.
Is this tool free?
Yes, completely free to use.