CSV ↔ JSON Converter - Convert Data Formats Online

Our CSV to JSON Converter is a powerful tool for transforming data between CSV and JSON formats. Whether you're working with spreadsheets, APIs, or databases, this tool makes data conversion quick and easy. All processing happens in your browser for complete privacy.

Features of CSV JSON Converter

Our converter comes with many amazing features:

Bidirectional conversion - CSV to JSON and JSON to CSV
Proper quote handling - Handles quoted fields with commas
Preserve data types - Numbers and strings handled correctly
Client-side processing - Your data never leaves your browser
Sample data included - Test with example data
Copy results instantly - One-click copy to clipboard

About CSV and JSON

What is CSV?

CSV (Comma-Separated Values) is a simple file format used to store tabular data. Each line represents a row, with values separated by commas. It's widely used in spreadsheets and data export.

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format. It's easy for humans to read and write, and easy for machines to parse and generate. JSON is commonly used in web APIs.

How to Convert CSV to JSON

Select the "CSV → JSON" tab
Paste your CSV data or click "Load Sample"
Click "Convert to JSON"
Copy the JSON output using the copy button

How to Convert JSON to CSV

Select the "JSON → CSV" tab
Paste your JSON array or click "Load Sample"
Click "Convert to CSV"
Copy the CSV output using the copy button

Format Requirements

CSV Format

header1,header2,header3
value1,value2,value3
value4,value5,value6

JSON Format

[
  {"header1": "value1", "header2": "value2"},
  {"header1": "value4", "header2": "value5"}
]

FAQs About CSV JSON Converter

Is my data secure?

Yes! All conversion happens locally in your browser. We don't store or transmit your data.

What if my CSV has quotes?

Our converter properly handles quoted fields, including fields that contain commas or quotes.

Can I convert nested JSON?

This tool works best with flat JSON arrays of objects. Nested structures may not convert correctly to CSV.

What's the maximum file size?

Since processing happens in your browser, very large files may be slow. For best performance, keep files under 1MB.

Use Cases

API Integration - Convert spreadsheet data to JSON for APIs
Data Export - Convert JSON API responses to CSV for Excel
Database Migration - Transform data between formats
Data Analysis - Prepare data for different tools
Reporting - Convert data for different report formats

CSV ↔ JSON Converter - Convert CSV to JSON Online | Lembog