How do I convert CSV to JSON?

Paste your CSV data into the input box or upload a .csv file, then click Convert. The tool automatically detects the delimiter (comma, semicolon, or tab) and uses the first row as headers to create named keys in the JSON output. You can then copy the JSON or download it as a .json file.

What delimiter does this CSV to JSON converter support?

This tool supports comma (,), semicolon (;), and tab-delimited CSV files. You can let the tool auto-detect the delimiter, or choose manually if your data contains commas within quoted fields.

What is the difference between CSV and JSON?

CSV (Comma-Separated Values) is a plain text format for tabular data — rows and columns, like a spreadsheet. JSON (JavaScript Object Notation) is a structured data format that supports nested objects and arrays, commonly used in APIs and web applications. Converting CSV to JSON makes it easier to consume tabular data in modern applications.

Is my CSV data sent to a server?

No. All processing happens entirely in your browser using JavaScript. Your CSV data never leaves your device and is never sent to any server. Safe to use with sensitive or confidential data.

Can I convert a CSV with special characters or quoted fields?

Yes. This converter handles RFC 4180 compliant CSV, including fields wrapped in double quotes, fields containing commas or newlines within quotes, and escaped double quotes (two consecutive quotes). Most standard CSV exports from Excel, Google Sheets, and databases are supported.