CSV ↔ JSON Converter
Convert between CSV and JSON formats with custom delimiter support.
About This Tool
This tool converts between CSV (Comma-Separated Values) and JSON (JavaScript Object Notation) formats. CSV is commonly used for spreadsheets and data export, while JSON is the standard format for web APIs and configuration files.
Common Use Cases
- Converting spreadsheet exports for use in web applications
- Preparing data for API uploads
- Transforming database exports between formats
- Data migration between systems
- Creating configuration files from spreadsheets
Examples
CSV Input:
name,age,city John,30,New York Jane,25,Los Angeles
JSON Output:
[
{"name": "John", "age": "30", "city": "New York"},
{"name": "Jane", "age": "25", "city": "Los Angeles"}
]
Notes & Limitations
- Quoted fields handle commas and line breaks within values
- Empty rows are skipped during conversion
- For JSON to CSV, all objects should have consistent keys
- Number detection is disabled to preserve data integrity
Privacy Note
All conversions happen client-side in your browser. Your data is never sent to any server.