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⚡ Advanced Developer Toolbox Transform, Mock, Security & API Client
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Class / Model to JSON: Keys:
Mock Preset: Count:
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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 Swift — Generate Codable Structs for iOS Apps

Every iOS app that talks to a REST API needs Codable types. Paste the JSON response from your API and get back Swift structs that conform to Decodable — with CodingKeys enums generated automatically when your JSON keys don't match Swift's camelCase naming convention.

Nullable fields become T? optionals. Arrays become [T]. Nested objects become separate structs. The output works with JSONDecoder out of the box and is compatible with Xcode 15+ and Swift 5.9+.

❓ Frequently Asked Questions

Is processing on json-to-swift.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 Swift Struct 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.

🧰 Complementary Developer Tools

📝 JSON Formatter & Beautifier ⚖️ Visual JSON Diff ⚡ Class to JSON Converter ✨ JSON Mock Data Generator