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⚡ Advanced Developer Toolbox Transform, Mock, Security & API Client
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Class / Model to JSON: Keys:
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Paste JSON Payload

Paste raw JSON, drag & drop a .json file, or choose a workflow below:

○ Waiting for JSON | Lines: 0 · Chars: 0 · Size: 0 B · Depth: 0
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Generated Output

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Ready to generate
Paste JSON in the input panel and hit Beautify or Generate to see results here.

JSON to TypeScript — Generate Interfaces from Real API Data

Tired of using any everywhere because typing an API response by hand takes too long? Paste the actual JSON response from your API and get back properly structured TypeScript interface definitions — one per nested object, all named and cross-referenced.

The generator handles null values by marking fields as T | null, arrays become T[], and nested objects get their own exported interface so your React, Vue, or Angular components get full autocomplete and type-checking immediately.

❓ Frequently Asked Questions

Is processing on json-to-typescript.html private and secure?

Yes. All JSON processing, parsing, and code generation happen 100% locally inside your browser sandbox. No server roundtrips or third-party tracking occur.

Is JSON Workbench free to use for JSON to TypeScript Interface Generator?

Yes, JSON Workbench is completely free for commercial and personal developer use with zero registration or payload limits.

Can I copy or download the generated output?

Yes! You can instantly copy the output code to your clipboard or download it as a structured file.

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🛡️ JSON to Zod Schema ⚡ Class to JSON Converter 📐 JSON to GraphQL 🚀 JSON to Postman