← Back to Tooly
🔄

CSV to JSON Converter

Convert CSV to JSON online for free. Instant browser-based conversion with customizable options. 100% private — no uploads to any server.

Paste your CSV data below

Options

✓ Copied!
Result appears here
Try CSV to JSON Converter Now →

What Is a CSV to JSON Converter?

A CSV to JSON converter transforms CSV (Comma-Separated Values) data into JSON (JavaScript Object Notation) format. CSV is ideal for spreadsheets and data exports, while JSON is perfect for web APIs, configuration files, and modern web applications.

Converting CSV to JSON online free is essential when you need to move data from spreadsheet programs like Excel or Google Sheets to web applications, APIs, or data processing tools.

How to Convert CSV to JSON

  1. Paste your CSV data into the input area
  2. Configure options (whether first row is header, output formatting) as needed
  3. Click "Convert to JSON" to transform your CSV data
  4. Copy the result or download it as a JSON file

Features

⚡ Instant ConversionConvert CSV to JSON instantly with a single click.
🔒 100% PrivateAll processing happens in your browser. Your data never leaves your device.
📊 Customizable OutputChoose whether your CSV has headers and control output formatting.
🆓 Completely FreeNo signups, no credit cards, no usage limits.

Frequently Asked Questions

What CSV formats are supported?
Our converter supports standard CSV format with comma delimiters. It handles quoted fields, escaped quotes, and multiline values within quotes. Both comma-separated and comma-space separated formats work.
What if my CSV doesn't have headers?
If your CSV doesn't have headers, simply uncheck the "First row is header" option. The converter will generate generic column names (column1, column2, column3, etc.) for your JSON objects.
Do I need to install anything?
No installation required. Our CSV to JSON converter online free runs entirely in your browser. Just open the page, paste your CSV, and get JSON instantly.
Is my data safe?
Absolutely. Your CSV data never leaves your browser — there are no server uploads, no logs, no tracking. This is a fully client-side tool.

Related Tools

JSON to CSV JSON Formatter Text Diff Word Counter Case Converter BankToCSV
Try CSV to JSON Converter Now →

Tooly — Free Online CSV to JSON Converter. No signup. No uploads. 100% free.

All Tools · Pricing · Privacy · BankToCSV