How to convert CSV to JSON
- Paste CSV data into the input box — straight from a file, or copied from Excel/Google Sheets (tabs are detected automatically).
- Leave “First row is header” checked to use column names as JSON keys; uncheck it for plain arrays.
- Copy the JSON or download it as a file. Conversion happens live as you type.
Why convert CSV to JSON?
Spreadsheets rule the business world, but APIs, config files and JavaScript apps speak JSON. This converter bridges the two: every CSV row becomes a JSON object with your column headers as keys, ready to fetch(), import, or seed a database with. It follows the CSV standard properly — quoted fields with embedded commas, escaped quotes and multi-line values all parse correctly, which is exactly where naive split-on-comma scripts fall apart.
Frequently asked questions
How do I convert a CSV file to JSON?
Open the CSV in any text editor (or Excel via Save As → CSV), copy the contents, and paste them into the input box. The JSON appears instantly — each row becomes an object using your header row as keys.
Does it handle semicolons and tab-separated data?
Yes. The delimiter is auto-detected (comma, semicolon, tab or pipe), and you can override it manually. Pasting straight from Excel works because Excel copies tab-separated text.
What if my CSV has commas inside values?
Values wrapped in double quotes are parsed correctly per the CSV standard (RFC 4180), including embedded commas, quotes and line breaks.
Is my spreadsheet data uploaded anywhere?
No. Conversion runs entirely in your browser, so customer lists and business data never leave your machine.