CSV to JSON Converter
Convert CSV files to JSON format instantly with our free online converter
Upload File for Conversion
Drag & drop your file or click to select • Supports JSON, CSV, TSV, XLSX files
✓ Smart Format Detection - Automatically detects file format
✓ Instant Conversion - Convert with one click
✓ Multiple Formats - JSON, CSV, TSV, XLSX support
✓ Privacy Protected - All processing happens in your browser
All file processing happens entirely in your browser. We do not upload, store, or access any of your file data.
How It Works
Supported Formats
- • JSON: JavaScript Object Notation
- • CSV: Comma Separated Values
- • TSV: Tab Separated Values
- • XLSX: Excel Spreadsheet
Simple Process
- 1. Upload your file (any supported format)
- 2. We automatically detect the format
- 3. Choose your target format
- 4. File downloads instantly
About CSV to JSON Conversion
CSV (Comma-Separated Values) is a widely used format for storing tabular data in plain text. JSON (JavaScript Object Notation) is a lightweight data interchange format that's perfect for web applications and APIs. Converting CSV to JSON allows you to use spreadsheet data in web applications.
Key Features
- Support for custom delimiters (comma, semicolon, tab)
- Automatic header detection and mapping
- Data type inference (numbers, booleans, dates)
- Browser-based processing - your data stays private
- Handle large CSV files efficiently
- Multiple JSON output formats (array of objects, nested structure)