CSV ↔ JSON Converter

Raw CSV text — rows separated by newlines, fields separated by a configurable delimiter (comma, semicolon, tab, pipe)

RFC 4180 parsing — handle double-quoted fields containing commas, newlines, and escaped quotes ("")

First row treated as column headers — used as object keys when outputting array of objects

Array of objects (keyed by headers) or array of arrays (raw rows) — selectable output format

Pretty-printed JSON ready to copy — preserves all field values including special characters

Array of objects — each object becomes one CSV row, keys become column headers

Union of all object keys across the array — ensures every field appears as a column

Nested objects and arrays are JSON-stringified into a single cell — no data loss

Fields containing commas, quotes, or newlines are wrapped in double quotes per RFC 4180

Header row followed by data rows — standard comma-separated format ready for spreadsheet import