How to Convert CSV to JSON Online?

Transform your CSV (Comma-Separated Values) data into structured JSON format with our online converter. Perfect for data integration, API development, or converting spreadsheet data into a programmable format.

1. Upload or paste your CSV

Just paste your CSV data or drag-and-drop your CSV file into the textarea of Data Source. The converter will automatically detect the delimiter and structure of your data.

2. Customize your JSON output

Configure your conversion settings to get the exact JSON structure you need:

• Choose column headers as keys
• Select custom delimiters (comma, tab, semicolon)
• Specify data types for columns
• Array or object output format
• Pretty print or minified output

3. Copy the converted JSON

The JSON code is generated instantly as you make changes. Preview the output in real-time and copy the formatted JSON to your clipboard with a single click.

Note: Your data is secure. All conversions are performed locally in your web browser, and we do not store any of your data.

What is CSV?

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, with each field separated by commas.

Supported CSV Formats

• .csv
• .tsv
• .txt
• Excel exported CSV

What is JSON?

JSON (JavaScript Object Notation) is a lightweight, text-based format for storing and transporting data. It's easy for humans to read and write and easy for machines to parse and generate.

Supported JSON Formats

• .json
• .jsonl
• .geojson