Why parsing quality is the whole product
Every data tool here shares one parser that takes RFC 4180 seriously: quoted fields, escaped quotes, commas and line breaks inside cells, and auto-detected delimiters (comma, semicolon, tab). That's the difference between tools you can trust with customer exports and tools that silently shred row 40,412. Two more safeguards are deliberate: type coercion is conservative ("007" and "19.90" stay strings), and CSV output neutralizes spreadsheet formula injection — a protection documented on the JSON → CSV page that mainstream converters simply don't have.
Because everything runs locally, there's no size-based paywall: the practical limit is your browser's memory (about 25 MB per file here), not a pricing tier.