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Convert JSON to Swift Codable Structs

Generate Swift Codable struct definitions from JSON data. Free online tool for iOS and macOS developers.

🔒 100% Client-side⚡ Instant🆓 Free forever

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About Convert JSON to Swift Codable Structs
Generate Swift Codable struct definitions from JSON data. Free online tool for iOS and macOS developers. This tool is part of the ConvertTOON developer tools suite, providing 40+ free online utilities for developers.
All processing happens entirely in your browser — your data never leaves your device. No sign-up required, no data collection, completely free and private.
💡 Looking for more tools? Visit ConvertTOON.com for JSON to TOON conversion, batch processing, and 40+ developer tools.
How to Convert JSON to Swift
  1. Paste your JSON data in the input panel
  2. The Swift output is generated automatically
  3. Click “Copy” to copy the result to clipboard
  4. Or click “Convert” to manually trigger conversion
Swift Codable protocol provides native JSON encoding and decoding support in iOS and macOS applications. This tool generates properly typed structs that work directly with JSONDecoder for API response handling.
Frequently Asked Questions
Is my data secure?
Yes. All conversion happens 100% in your browser using JavaScript. No data is ever sent to a server.
Is there a file size limit?
The tool handles files up to several MB comfortably. For very large files, consider using our batch converter or API.
Can I use this programmatically?
Yes! We offer a free REST API at /api/convert/json-to-swift and an NPM package for Node.js integration.
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