CSV ↔ JSON Converter

Convert between CSV and JSON formats. Paste your data, upload a file, or drag and drop.

CSV Input Upload file

JSON Output

CSV delimiter

Include headers

Skip empty rows

Pretty-print JSON

About this converter

This tool converts CSV data to JSON, or JSON back to CSV, entirely in your browser — nothing you paste or upload is sent to a server. Choose a direction, paste your data or drop a file, and the converted result updates instantly.

What delimiters are supported?

Comma, semicolon, tab and pipe. Pick the one that matches your CSV, or the one you want in the output.

What does "Include headers" do?

For CSV → JSON, it treats the first row as field names. For JSON → CSV, it adds a header row with the object keys.

Does it handle quoted fields and commas inside values?

Yes. The parser follows standard CSV quoting rules, including escaped quotes and delimiters or line breaks inside quoted fields.

Is my data uploaded anywhere?

No. Conversion happens locally in your browser. Nothing is stored or transmitted.