What CSV formats are supported?

The tool supports standard CSV with commas, TSV with tabs, and custom delimiters. It handles quoted fields and multiline values.

How are data types handled?

By default, all values are strings. The tool can optionally infer types (numbers, booleans) from the data.

CSV to JSON Converter - Online CSV Transformation

How to Use

Paste CSV table data into the left input box, ensuring the first row is the header.
Click the "Convert to JSON" button. The system will automatically parse the CSV data.
The converted JSON array appears in the right output box, with each object corresponding to one data row.
Click the "Copy Result" button to copy the JSON data to your clipboard.

Related Tools

JSON to CSV

Convert JSON array data to CSV table format.

JSON to Excel

Export JSON data directly to Excel files.

YAML to JSON

Convert YAML configuration files to JSON format.

About CSV to JSON

CSV to JSON is a free online conversion tool that quickly converts CSV table data to standard JSON array format. CSV (Comma-Separated Values) is a common tabular data storage format widely used in data export, spreadsheets, and database operations.

In development, we often need to convert CSV file data to JSON format for display in frontend pages, API transmission, or storage in NoSQL databases. This tool automatically identifies the CSV header row and converts each data row into a JSON object, with headers as object keys. The entire conversion runs locally in the browser without uploading data to any server.