JSONをExcel/CSVに

JSONをExcel/CSVに変換するツール

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About This Tool

The JSON to Excel/CSV convert json data structures into csv format with configurable flattening, delimiter options, and array handling strategies. 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 EXCEL output style. Smart defaults work for most cases, but you can customize how JSON structures map to EXCEL.

Review EXCEL Output

The converted EXCEL appears in real-time. Review carefully to ensure data integrity is maintained. Copy to clipboard or download the EXCEL file. Verify the output with our EXCEL 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 EXCEL. Invalid JSON often produces unexpected EXCEL results.
✓Review conversion results. Spot-check the EXCEL 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-EXCEL conversion can have nuances that require attention.
✓Use related tools in sequence. After conversion, use our EXCEL 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 EXCEL. Also check if the data structure is compatible - some JSON features may not have EXCEL equivalents.

Example: JSON comments or special attributes might not convert to EXCEL if EXCEL 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.