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CSV to NDJSON
Convert CSV directly to complete object or array NDJSON records with exact string values.
Pasted CSV, One UTF-8 CSV/TSV/text file
converted.ndjson, conversion-report.json
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter the admitted input using CSV input, Input delimiter, Record mode. A selected UTF-8 source file takes precedence over paste.
- Use the explicit mode and declared finite options. Only selected operation fields participate.
- Select Convert CSV to NDJSON and download converted.ndjson, conversion-report.json.
Examples
Header id,value followed by1,001 produces one object whose id is the string1 and value is the string001.
Limitations
- 5 MiB input; 50,000 output records, 500 columns and 500,000 cells. Combined artifacts20 MiB and a 30-second processing limit.
- Objects require strict unique nonempty headers. Arrays include the first source record. Preserve strings and record order; numeric-looking object keys follow ordinary JavaScript own-key ordering.
- No numeric/boolean inference, CSV formula protection or lexical object-member ordering guarantee. Header-only object input produces an empty stream.
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