Convert between CSV (comma-separated) and TSV (tab-separated). Quoted fields containing commas or line breaks are handled correctly.
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CSV values that contain commas are wrapped in double quotes, like "New York, NY". A simple comma-to-tab replacement splits those values apart and shifts your columns. This tool parses quotes per RFC 4180 — commas, line breaks and escaped quotes ("") inside a quoted field stay part of the value, and TSV output quotes fields that contain tabs.