JSON to Swift

Convert JSON to Swift Codable structs with CodingKeys and protocol conformance

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About This Tool

The Json To Swift json to swift struct engine - convert json to swift struct/class definitions supports codable, decodable, encodable, codingkeys All processing happens client-side in your browser, ensuring your data remains private and secure. Perfect for developers who need quick, reliable processing without compromising on privacy or security.

How to Use This Tool

Paste JSON Source Data

Enter the JSON data you want to convert. The tool automatically validates your JSON input and shows any syntax errors before conversion. Ensure your JSON is valid for best results.

Configure Conversion Options

Adjust conversion settings like indentation, handling of JSON-specific features, and SWIFT output style. Smart defaults work for most cases, but you can customize how JSON structures map to SWIFT.

Review SWIFT Output

The converted SWIFT appears in real-time. Review carefully to ensure data integrity is maintained. Copy to clipboard or download the SWIFT file. Verify the output with our SWIFT validator if needed.

Technical Implementation

This tool is built using modern JavaScript and runs entirely in your web browser. All operations complete in milliseconds for typical inputs, with performance optimized for both speed and accuracy. The implementation is client-side only - your data never leaves your device. The tool works offline once loaded, requires no cookies, and includes no tracking. Supported browsers include Chrome 90+, Firefox 88+, Safari 14+, and Edge 90+. The tool is mobile-responsive and works on tablets and smartphones.

Best Practices & Tips

✓Validate input before conversion. Ensure your JSON is valid before converting to SWIFT. Invalid JSON often produces unexpected SWIFT results.
✓Review conversion results. Spot-check the SWIFT output to ensure data structure and values are preserved correctly. Pay special attention to nested objects and special characters.
✓Handle conversion edge cases. Test with empty values, null fields, special characters, and large datasets. JSON-to-SWIFT conversion can have nuances that require attention.
✓Use related tools in sequence. After conversion, use our SWIFT formatter and validator to ensure the output is clean and valid. This creates a reliable conversion workflow.

Troubleshooting Common Issues

Problem: Conversion output is missing data or incorrect

Solution: First validate your JSON input. Invalid JSON often converts to incomplete SWIFT. Also check if the data structure is compatible - some JSON features may not have SWIFT equivalents.

Example: JSON comments or special attributes might not convert to SWIFT if SWIFT doesn't support those features.

Problem: Special characters appear corrupted after conversion

Solution: Ensure your JSON uses proper character encoding (UTF-8). Special characters, emojis, or international text require consistent encoding throughout the conversion process.

Example: If you see � or garbled text, your source JSON might not be UTF-8 encoded.