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CSV to JSON Converter

Convert CSV files to JSON format with advanced options, preview, and data validation.

file-processingstructured-datajsoncsvexcel

Input CSV

Your data is processed locally in your browser. We never store or transmit your information.

About CSV to JSON Conversion

This tool converts CSV (Comma-Separated Values) data into JSON format with advanced options for customization. Features include header detection, dynamic typing, array parsing, and more. Perfect for data transformation and API integration tasks.

Features & Capabilities

Advanced Parsing Options

  • First row header detection
  • Automatic data type inference
  • Array and nested data support
  • Empty line handling
  • Whitespace trimming

Output & Preview

  • Live data preview table
  • Formatted JSON output
  • Copy to clipboard
  • Download as file
  • Error handling

Common Use Cases

Data Migration

Convert spreadsheet data to JSON format for database imports or API submissions.

API Integration

Transform CSV exports into JSON payloads for RESTful API endpoints.

Data Analysis

Convert CSV datasets into JSON for JavaScript-based data visualization tools.

CSV Format Guidelines

CSV (Comma-Separated Values) is a simple file format used to store tabular data. Each record consists of fields separated by commas, and records are separated by newlines.

Example CSV Structure

name,age,city
John Doe,30,New York
Jane Smith,25,London
Bob Johnson,35,Paris

This will be converted to a JSON array of objects, with the first row used as property names if the "First Row as Headers" option is enabled.

Tips for Best Results

Data Preparation

  • Ensure consistent column count across rows
  • Use clear, unique column headers
  • Remove any special formatting
  • Check for proper comma usage

Conversion Settings

  • Enable "Trim Whitespace" for cleaner data
  • Use "Dynamic Typing" for proper number handling
  • Enable "Skip Empty Lines" to avoid null entries
  • Check preview before downloading

Technical Details

Our CSV to JSON converter handles various data types and formats:

Supported Data Types

  • Strings (text data)
  • Numbers (integers and decimals)
  • Booleans (true/false)
  • Null values
  • Arrays (when enabled)

File Specifications

  • Input: CSV text or file upload
  • Output: Formatted JSON
  • Encoding: UTF-8
  • Max file size: 10MB
  • Browser-based processing

Frequently Asked Questions

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