Does it handle quoted fields and commas inside values?

Yes. Papa Parse handles standard CSV escaping — quoted fields can contain commas and newlines.

What if my CSV uses tabs or semicolons?

Set the delimiter field accordingly. Use \t for tabs (or just paste a literal tab).

Are my CSVs uploaded?

No. Parsing runs in your browser.

Developer Tools

CSV ↔ JSON Converter

Convert CSV to JSON or JSON to CSV. Choose delimiter, header row, indent.

Delimiter

First row is header

Indent

CSV

JSON

Files processed in your browser

Your files never leave your device. No upload, no servers.

About CSV ↔ JSON Converter

CSV ↔ JSON Converter swaps tabular data between CSV and JSON. Configure the delimiter (comma, tab, semicolon, pipe), choose whether the first row is a header, and set JSON indentation. Auto-detects numbers and booleans. Powered by Papa Parse — battle-tested CSV parser. Handles quoted fields, escapes, and BOMs correctly. Runs in your browser.