CSV to JSON Converter
Transform CSV spreadsheet data to JSON format for APIs and applications
CSV to JSON Converter
Your data stays private
All conversion happens locally in your browser. Your CSV data is never uploaded to any server.
How to Use the CSV to JSON Converter
Input Your CSV Data
Paste your CSV data directly into the text area, or upload a .csv file from your device. The converter automatically detects common delimiters like comma, semicolon, tab, and pipe.
Configure Conversion Options
Choose whether the first row contains headers, enable empty row skipping, and toggle auto-detection of data types (numbers, booleans) for proper JSON typing.
Convert to JSON
Click the "Convert to JSON" button to transform your CSV data. The conversion happens instantly in your browser with no server uploads required.
Copy or Download Results
Review the formatted JSON output, then copy it to your clipboard with one click or download it as a .json file for use in your applications.
Pro tip: Your data is processed entirely in your browser. Nothing is sent to any server, ensuring complete privacy.
How to Convert CSV to JSON
Converting CSV to JSON is essential for modern web development and API integration. Our converter transforms spreadsheet data into structured JSON that's ready for use in applications, databases, and web services.
Step-by-Step Guide
- Paste your CSV data or upload a .csv file
- Configure options: header row detection, empty row handling, type inference
- Click "Convert to JSON" to process your data
- Review the JSON output and copy or download
Conversion Options
- First row is header: Uses first row values as JSON property names
- Skip empty rows: Ignores blank lines in the CSV
- Auto-detect types: Converts numbers and booleans to proper JSON types
Use Cases
- Import spreadsheet data into web applications
- Prepare data for REST API requests
- Convert Excel exports for JavaScript processing
- Migrate legacy CSV data to modern JSON format
- Transform data for NoSQL database imports
Frequently Asked Questions
Does it auto-detect the delimiter?
Yes, the converter automatically detects common delimiters including comma, semicolon, tab, and pipe. It analyzes the first row to determine the most likely delimiter.
What happens to the header row?
By default, the first row is treated as column headers and used as JSON property names. You can disable this to treat all rows as data, resulting in arrays of values.
How are data types handled?
With "Auto-detect types" enabled, numbers and booleans are converted to their proper JSON types. Disable it to keep all values as strings.
Can it handle quoted values?
Yes, the parser fully supports RFC 4180 compliant CSV files including quoted fields, escaped quotes, and values containing delimiters or newlines.
What about Excel CSV exports?
Excel CSV exports work perfectly. The converter handles both Windows and Unix line endings, and supports Excel's semicolon delimiter format used in some regions.
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