csv-to-jsonl

Overview

Converts CSV or TSV data into JSON, JSONL/NDJSON, or column-oriented arrays. RFC 4180 parser with type inference (booleans, integers, floats, ISO dates, null tokens) and configurable delimiter, quote char, header presence, column rename, drop columns, and whitespace trim. Outputs newline-delimited JSON (jsonl), a JSON array (json), or column-oriented arrays (ndarray). Use it as a CSV to JSON, CSV to NDJSON, TSV to JSON, or spreadsheet to JSON converter, data pipeline preprocessor, or LLM trainin

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