An OK solution to convert a JSON file to Parquet format.

These instructions will get parokay installed and running on your local machine.

• Python 3.12+
• uv (recommended) or pip

$ git clone https://github.com/rwarner/parokay
$ cd parokay
$ uv sync

$ uv run parokay data.json
$ uv run parokay data.json -o output.parquet

The input JSON file must contain either a single object or an array of objects. The output Parquet file defaults to the same path as the input with a .parquet extension.

$ parokay records.json              # writes records.parquet
$ parokay records.json -o out.parquet  # writes out.parquet

Install dev dependencies and run the test suite:

$ uv sync --extra dev
$ uv run pytest

• Built with PyArrow

Copyright © 2026 Rob Warner

Licensed under the MIT License