CSV to JSONL Converter

Turn spreadsheet rows into JSON Lines without losing quoted commas.

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Sample inputs
prompt,completion,tone
"Write a headline","Save time with clean imports",direct
"Summarize this note","Short summary goes here",concise

Generated result
Summary: 2 rows converted to JSONL using 3 columns.

Stats
- Rows: 2
- Columns: 3
- Delimiter: ,

Issues
- No issues found.

Output
{"prompt":"Write a headline","completion":"Save time with clean imports","tone":"direct"}
{"prompt":"Summarize this note","completion":"Short summary goes here","tone":"concise"}

• Header row handling

  The first CSV row becomes JSON object keys, with empty headers replaced by column_N names.

• Quoted cells

  Quoted commas and escaped quotes are preserved so product names, prompts, and notes stay intact.

• Uneven row warnings

  Rows with too many or too few cells are reported before export.

• Duplicate header protection

  Repeated header names are renamed with numeric suffixes so JSON keys stay unique.

• JSONL export

  Each parsed row is serialized as exactly one JSON object per line.