JSON to NDJSON

Convert a JSON array into NDJSON / JSON Lines (JSONL) — one compact JSON value per line, ready for log pipelines, BigQuery, or streaming imports. Copy it or download the .ndjson. Runs in your browser.

Frequently asked questions

What does JSON to NDJSON produce?

Each element of your top-level array is written as one compact single-line JSON value, separated by newlines — the JSON Lines / JSONL format.

What if my input is a single object, not an array?

A single object or scalar is emitted as one NDJSON line.