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CSV to NDJSON
One JSON object per line (newline-delimited JSON) — first row becomes the keys, every value stays a string, previewed exactly as it downloads.
A little guidance. A better result.
How to use CSV to NDJSON
One JSON object per line — header row becomes the keys, values stay strings, previewed exactly.
Prepare your input
Paste CSV with distinct header names.
Use the workspace
Review one JSON object per data row.
Check your result
Check the number of output lines and key values.
Know the limits
CSV values stay strings. Duplicate headers cannot be preserved as separate object keys.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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