Upload Excel or CSV File
Key Features
- Convert Excel (XLSX, XLS) to JSON instantly
- Convert CSV to JSON with automatic delimiter detection
- Preserves data structure and formatting
- First row automatically used as JSON keys
- Download JSON file or copy to clipboard
- Preview JSON output before downloading
- Pretty-printed JSON with proper indentation
- Handles Unicode characters correctly
- No file size limits for most use cases
- Completely free with no registration required
Common Use Cases
- Convert Excel spreadsheets for web applications
- Transform CSV data exports into JSON format
- Migrate data from Excel to NoSQL databases
- Generate JSON for API development and testing
- Convert business data for JavaScript applications
- Prepare data for data visualization libraries
- Transform Excel reports into web-ready format
- Convert CSV exports from tools like Google Sheets
- Create JSON configuration files from spreadsheets
- Import Excel/CSV data into modern web frameworks
How to Convert Excel/CSV to JSON
- Click "Choose File" and select your Excel (.xlsx, .xls) or CSV (.csv) file
- The first row of your file will be used as JSON property names (keys)
- Click "Convert to JSON" button to start the conversion
- Preview the generated JSON in the result section
- Click "Download JSON" to save the file, or use "Copy" to copy to clipboard
- The JSON file will be properly formatted with indentation for readability
Frequently Asked Questions
This tool supports Excel files (.xlsx and .xls) and CSV files (.csv). You can convert any of these formats to JSON with a single click.
The tool reads your Excel or CSV file, uses the first row as JSON keys (property names), and converts each subsequent row into a JSON object. All objects are combined into a JSON array.
Currently, the tool converts only the active (first) sheet of your Excel file. If you need to convert multiple sheets, please convert them one at a time.
Yes! The tool automatically detects common delimiters (commas, semicolons, tabs). Make sure your CSV file uses standard formatting for best results.
The tool can handle files up to 10MB. For most Excel and CSV files, this is more than sufficient (thousands of rows).
The tool generates a JSON array of objects, where each object represents one row from your file. The JSON is pretty-printed with proper indentation for readability.
No! Files are processed in memory and immediately deleted after conversion. We do not store any uploaded files or converted data.
Yes! This tool is completely free to use for personal and commercial projects with no restrictions.
The tool converts the calculated values of formulas, not the formulas themselves. This ensures your JSON contains actual data values.
The tool properly handles Unicode characters, special symbols, and international text. Your data will be preserved exactly as it appears in the source file.
