CSV to JSON Converter

Transform your CSV data into JSON format instantly. Perfect for APIs, web applications, and modern data workflows. Free, fast, and secure - all processing happens in your browser.

Conversion Tips

Use quotes around values containing the delimiter
Numbers and booleans will be automatically converted
Empty cells will be converted to empty strings
Escape quotes by doubling them ("")
File upload support for direct CSV processing

How to Convert CSV to JSON

1

Upload CSV

Upload your CSV file or paste CSV data into the input field.

2

Configure

Set delimiters and options for your specific CSV format.

3

Get JSON

Download your JSON file or copy the formatted JSON output.

Why Convert CSV to JSON?

JSON (JavaScript Object Notation) is the standard format for modern web APIs, applications, and data exchange. Converting CSV to JSON allows you to:

  • Use data in web applications and APIs
  • Import data into NoSQL databases like MongoDB
  • Process data with JavaScript and modern programming languages
  • Create configuration files and data structures

Features

Custom Delimiters

Support for comma, semicolon, tab, and custom delimiter options.

Header Detection

Automatically detect and use CSV headers as JSON object keys.

Large File Support

Handle large CSV files with thousands of rows efficiently.

Data Type Recognition

Smart detection of numbers, booleans, and string data types.