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Convert JSON to NDJSON

Splits an array into one object per line. This is what log tooling, Elasticsearch bulk loads and most streaming pipelines actually want, and it means nothing has to hold the whole array in memory.

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What is JSON?

The format the web runs on. Nested objects and arrays, real types, and a syntax small enough to fit on a postcard. It maps badly onto a grid, which is why converting deeply nested JSON to a spreadsheet always involves losing something.

What is NDJSON?

One JSON object per line, with no wrapping array. That small change is the whole point: a program can read a record at a time instead of parsing gigabytes into memory first, which is why log pipelines, bulk importers and search indexes all speak it.