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Input Source

โšก Advanced Developer Toolbox Transform, Mock, Security & API Client
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Class / Model to JSON: Keys:
Mock Preset: Count:
๐Ÿ“‹

Paste JSON Payload

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

โ—‹ Waiting for JSON | Lines: 0 ยท Chars: 0 ยท Size: 0 B ยท Depth: 0
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Invalid JSON

Generated Output

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

Class / Model to JSON Converter โ€” Reverse Code Parsing

Need to create a sample JSON payload from a Java POJO, TypeScript interface, C# class, Go struct, or Python model? Paste your code snippet here and instantly generate a clean, formatted JSON object payload with matching types and custom property annotations (like @JsonProperty, [JsonPropertyName], or json:"..." tags).

Handles nested types, List<T> arrays, primitives, booleans, and custom field names automatically. Ready to drop into REST API testing tools, Postman, or unit tests.

โ“ Frequently Asked Questions

Is processing on class-to-json.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 Class / Model to JSON Generator Online?

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.

๐Ÿงฐ Complementary Developer Tools

โ˜• JSON to Java POJO ๐Ÿ“˜ JSON to TypeScript ๐Ÿน JSON to Go Struct ๐Ÿ JSON to Python