Parquet to NDJSON

Convert your Parquet files to NDJSON (JSON Lines) — one JSON object per line, ideal for streaming ingestion and large-file pipelines. Runs locally in your browser.

How it works

Drop or choose a .parquet file; it is decoded locally and an .ndjson file with one JSON object per line is downloaded. Large files can stream straight to disk in Chromium-based browsers. No upload.

Why convert Parquet to NDJSON

NDJSON (JSON Lines) streams cleanly into BigQuery loads, log shippers, and machine-learning pipelines, processing one record at a time instead of holding the whole file in memory.

Private by design

The file never leaves your browser — there is no server and no upload. Conversion runs locally using WebAssembly.