Paste your CSV into a browser-based CSV to JSON converter and it reads the header row as keys and turns each remaining row into a JSON object, giving you an array of objects. The conversion runs on your device, so a spreadsheet export full of customer or order data is never uploaded, and quoted fields with embedded commas are handled correctly.
A CSV is a grid: the first line names the columns and every line after it is a record. A converter treats the header row as the set of keys and pairs each cell in a data row with its column name, producing one JSON object per row and collecting them into an array. The tricky part is fields that contain commas or quotes inside them, which a naive split would break, so a real parser respects the quoting rules and keeps those values intact.
CSV exports usually come straight out of a spreadsheet or a database, so they often carry names, emails, amounts and internal ids. Pasting that into a site that converts it server-side sends the whole table to someone else. A client-side converter parses the CSV in the page you have open and never transmits it, which lets you reshape real data into JSON for an API or a script without it leaving your machine.
Yes. The header row supplies the keys, so each data row becomes an object with those field names.
Yes. A proper parser respects quoted fields, so a value with a comma or quote inside it stays intact.
No. The conversion runs entirely in your browser, so the data never leaves your device.