CSV to JSON Lines Converter
Convert CSV or TSV rows directly to NDJSON records while preserving quoted fields, line breaks and numeric-looking text.
Start with your input
Edit the example or replace it with your own text.
Choose your options
These settings are optional. Keep the defaults to get started.
How to use CSV to JSON Lines Converter
- Load the included example or provide your own input and settings.
- Choose the operation and review the supported format below.
- Run the tool, inspect the result, and copy or download it.
Export one complete object per line
Use the first row as the property-name header and convert each following row to a complete JSON object. Quoted delimiters, doubled quotes and line breaks inside cells are handled by the shared separated-value parser. Each output record occupies one physical line because line breaks inside strings are JSON-escaped. A final newline is included for compatibility with common text-processing workflows.
Preserve spreadsheet text deliberately
All CSV cells remain strings, including leading zeros, dates, booleans and empty cells. This avoids silently guessing a schema while moving records into an ingestion pipeline. Header names must be unique and nonempty, and every record must have the same number of cells as the header. The tool processes up to fifty thousand data cells in memory; it is not a streaming importer for multi-gigabyte files.
Example input
id,name,note 001,Ada,"hello, team" 002,Grace,"two lines in a cell"
Does CSV to JSON Lines Converter upload my input?
No. This tool processes input locally in your browser without calling a conversion API.
Is input uploaded?
Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.