Free · No sign-up · Runs in your browser
JSON Lines to CSV Converter
Convert newline-delimited JSON objects into a CSV spreadsheet while keeping one record per line.
STEP 1
Start with your input
Edit the example or replace it with your own text.
How to use JSON Lines to CSV Converter
- Paste or edit the json lines (ndjson).
- Select convert to csv to process the input locally in your browser.
- Review the output, then copy it or download the converted file.
Convert JSON Lines to CSV without losing useful fields
Each nonblank line must be a JSON object. The output columns are the union of keys in first-seen order; nested values are serialized as JSON and remain text.
Check the output before importing it
The converter reports invalid or unsupported input rather than guessing silently. Review the generated values in the destination application, especially date formats, nested data and identifiers that may have special meaning there.
Example input
{"name":"Ada","city":"London"}
{"name":"Linus","city":"Helsinki"}Is my input stored?
No. This conversion runs in your browser and your input is not uploaded.
Is input uploaded?
Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.