CSV to JSON.

Paste CSV data and get a clean JSON array. Header row, quoted fields, and custom delimiters all handled in the browser.

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3 rows · 3 cols

Header rowFirst row contains column names

Delimiter

JSON

[ { "name": "Maria", "role": "editor", "joined": "2024-03-12" }, { "name": "Jamal", "role": "developer", "joined": "2025-01-04" }, { "name": "Olivia, P.", "role": "writer", "joined": "2025-09-30" } ]

§ Tabular to records

Spreadsheet, as records.

Rows become objects keyed by your header. Quoted fields with commas and embedded line breaks are honoured.

Does it handle quoted fields with commas inside?

Yes. The parser respects double-quoted fields and escaped quotes ("") inside them, matching RFC 4180 closely.

What if a header is missing?

Empty header cells are renamed `column_1`, `column_2`, etc., so your JSON keys stay valid.

How big a file can it handle?

A few megabytes is comfortable. Larger files will lock the main thread briefly while parsing — split offline or use a streaming tool for very large datasets.

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