🧮 SuperTools

CSV to JSON Converter

Convert CSV (Comma-Separated Values) data to JSON (JavaScript Object Notation) format with customizable options. Upload a CSV file or paste your data directly.

CSV Input

Or upload a CSV file

CSV Parse Options

JSON Output

JSON output will appear here after conversion...


About CSV to JSON Conversion

This tool converts comma-separated values (CSV) data into JSON (JavaScript Object Notation) format.

JSON is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate. It's commonly used for APIs, configuration files, and data storage.


About CSV Format

CSV (Comma-Separated Values) is a simple file format used to store tabular data, such as a spreadsheet or database. Each line of the file is a data record. Each record consists of one or more fields, separated by commas.

CSV is a common data exchange format that is widely supported by consumer, business, and scientific applications. Among its most common uses is moving tabular data between programs that natively operate on incompatible formats.

About JSON Format

JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate.

JSON is based on a subset of the JavaScript Programming Language and is commonly used for APIs, configuration files, and data storage due to its simplicity and widespread support across programming languages.

Conversion Tips

  • Check your delimiter: While comma is the most common CSV delimiter, some files use semicolons, tabs, or pipes instead.
  • Headers are required: The first row of your CSV should contain column headers, which will become the keys in the JSON objects.
  • Data type formatting: Enable "Format values" to automatically convert numbers and booleans from strings to their proper types.
  • Quoted fields: Enable "Quoted fields" support if your CSV contains commas within field values that are wrapped in quotes.
  • Trim whitespace: Enable "Trim values" to remove leading and trailing whitespace from each field.

Common Use Cases

Converting CSV to JSON is particularly useful in these scenarios:

  • API Development: Converting spreadsheet data into JSON format for API responses or test data.
  • Data Processing: Transforming CSV exports from databases or spreadsheets into JSON for web applications.
  • Configuration Files: Converting tabular configuration data into JSON format for application settings.
  • Data Migration: Moving data from legacy CSV systems to modern JSON-based applications.