CSV to JSON
Converter.
Convert CSV data to JSON format instantly. Transform spreadsheet data into structured JSON arrays and objects. Free online tool.
Input
First row becomes object keys. Handles quoted values correctly.
Output
Paste input and click
Convert to JSON to see results.
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About This Tool
What is CSV to JSON Converter?
This tool converts CSV (Comma-Separated Values) data into JSON format. The first row of your CSV becomes the object keys, and each subsequent row becomes a JSON object in an array.
How to Use This Tool
- Paste your CSV data into the input field
- Click "Convert to JSON"
- Copy or download the generated JSON
How the Conversion Works
- First row: Used as object property names (keys)
- Subsequent rows: Each becomes a JSON object
- Output: Array of objects
Example
Input CSV:
name,email,age John,john@example.com,30 Jane,jane@example.com,25
Output JSON:
[
{"name": "John", "email": "john@example.com", "age": "30"},
{"name": "Jane", "email": "jane@example.com", "age": "25"}
]Common Use Cases
- Convert spreadsheet exports for use in web applications
- Transform data for API consumption
- Prepare data for database imports
- Convert configuration files between formats
Frequently Asked Questions
How does CSV to JSON conversion work?
The first row of your CSV becomes the JSON object keys (property names), and each subsequent row becomes a JSON object in an array.
Are data types preserved?
All values are converted as strings by default. You may need to parse numbers or booleans in your application after conversion.
What if my CSV has empty cells?
Empty cells are converted to empty strings in the JSON output. You can process these as null values in your application if needed.
Is there a size limit for CSV files?
The tool handles CSV data of reasonable size in the browser. For very large files (>10MB), consider using a desktop application or command-line tool.