How to validate an NDJSON file (one JSON object per line)

1. Paste your NDJSON

   Drop the text into the "NDJSON" field — one JSON value per line. The tool splits on `\n`/`\r\n`, trims blanks, and then runs `JSON.parse` on each remaining line.

2. Permissive on whitespace

   Blank lines are skipped (not flagged). Trailing whitespace inside a line is tolerated — only the JSON parser's strictness applies.

3. Press Run

   Result returns linesValidated (count of non-blank lines), ok (true if every line parsed), and errors[] — each entry is `Line N: <parser error>` so you can jump straight to the broken record.

4. Use for log/stream data

   NDJSON is common in log shipping, event streams, and bulk-load endpoints (Elasticsearch, BigQuery). The validator catches a single bad line that would otherwise abort the whole ingestion.