Excel to JSON Converter
Convert Excel files to JSON format online. Upload Excel or CSV files and transform them into structured JSON data with customizable formatting options.
Upload Excel/CSV File
Click to select file or drag & drop
Instant Conversion
Convert Excel and CSV files to JSON format instantly. Supports .xlsx, .xls, and .csv file formats with real-time processing.
Multi-Sheet Support
Handle Excel files with multiple sheets. Select specific sheets to convert or process all sheets at once.
Customizable Output
Control JSON output format with options for headers, empty cells, pretty printing, and array/object structure.
Large File Handling
Process large Excel files efficiently with optimized memory usage and progress tracking for better user experience.
Data Preview
Preview converted JSON data before downloading to ensure proper formatting and data integrity.
Secure Processing
All file processing is done locally in your browser. Your data never leaves your device, ensuring complete privacy.
Why Use Our Excel to JSON Converter?
Our Excel to JSON converter is designed for developers, data analysts, and business professionals who need to transform spreadsheet data into JSON format. With support for multiple file formats, customizable output options, and secure client-side processing, it's the perfect tool for data integration and API development tasks.
Common Use Cases
- Convert Excel data for API integration and web services
- Migrate spreadsheet data to JSON-based systems
- Transform Excel data for web application consumption
- Convert Excel configuration files to JSON format
- Prepare Excel data for JavaScript-based analysis tools
- Convert Excel data for NoSQL database imports
Technical Features
Built with modern web technologies for optimal performance. Features include client-side processing for data security, support for large files, automatic data type detection, customizable JSON structure, and cross-browser compatibility. All processing is done locally in your browser for maximum privacy and speed.
Usage Tips
For best results, ensure your Excel file has consistent data structure and clear column headers. Use the first row as headers option for proper JSON key naming. Consider the output format based on your needs - array format for lists, object format for key-value pairs. Large files may take longer to process, so be patient during conversion.