Are my Parquet files uploaded anywhere?

No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and watch that nothing is sent while the file converts.

Is converting Parquet to CSV free?

Yes, without a limit on how many files you convert and with no watermark on the result. Files up to 100 MB are covered by the free plan.

Does converting Parquet to CSV lose quality?

No. CSV stores the same content without discarding anything, so the result is identical in quality to the original.

Do I need to install anything to open CSV files?

No installation is needed for the conversion itself — it runs in the browser you already have. Opening the CSV afterwards needs whatever software normally handles Comma-Separated Values on your device.

ParquettoCSV

Convert Parquet to CSV

Up to 3 files at once, 100 with Pro. Mixed formats are fine.

Parquet to CSV conversion is not running yet. This page describes what it will do; the Parquet conversions that work today are linked at the bottom.

What Parquet and CSV are for

Columnar storage for large datasets. Far smaller and faster to query than CSV.

A table as plain text. Every spreadsheet, database and analytics tool reads it.

How to convert Parquet to CSV

Drop your Parquet file onto this page, or click to pick one.
Choose CSV as the target. The conversion runs inside your browser — the file is never uploaded.
Download the finished CSV file.

Parquet vs CSV: what changes

Parquet compared with CSV
	Parquet	CSV
Full name	Apache Parquet	Comma-Separated Values
File extension	.parquet	.csv
Media type	application/vnd.apache.parquet	text/csv
Compression	Lossless — nothing is discarded	—

Quality: Nothing is lost. The result holds exactly the same picture, text or data as the original.
Where it runs: This conversion is not available yet. The page describes what it will do once the engine ships.

Parquet to CSV: common questions

Are my Parquet files uploaded anywhere?: No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and watch that nothing is sent while the file converts.
Is converting Parquet to CSV free?: Yes, without a limit on how many files you convert and with no watermark on the result. Files up to 100 MB are covered by the free plan.
Does converting Parquet to CSV lose quality?: No. CSV stores the same content without discarding anything, so the result is identical in quality to the original.
Do I need to install anything to open CSV files?: No installation is needed for the conversion itself — it runs in the browser you already have. Opening the CSV afterwards needs whatever software normally handles Comma-Separated Values on your device.