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CSV to NDJSON Converter

Convert CSV data into newline-delimited JSON objects for use with streaming APIs, log processors, and modern ETL pipelines.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

CSV samples

Loaded sample: Default sample

CSV data

Supports header rows, quoted values, and multi-line fields.

Delimiter

Use first row as headers

Add secondary CSV

NDJSON stands for Newline Delimited JSON. Each line in the output is a valid JSON object, which makes it ideal for streaming APIs and log processors.

Many data pipelines, including Elasticsearch, Amazon Kinesis, and modern ETL tools, expect NDJSON for efficient ingestion.

Each header becomes a JSON key. Rows without a header value produce empty strings for that key to maintain consistent structure.

Report a bug

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