Apache Parquet is compact and fast, but it's a binary, columnar format — you can't open a .parquet file in Excel or a text editor and read it. CSV is the opposite: plain text that every spreadsheet, database, and BI tool understands. This page is the quickest way to turn one into the other, right in your browser.
Why convert Parquet to CSV?
- Open it in a spreadsheet. Excel, Google Sheets, and Numbers all import CSV directly — Parquet they can't read at all.
- Feed older tools. Plenty of importers, scripts, and legacy systems only accept CSV.
- Eyeball the data. CSV is human-readable, so you can scan or diff it without any special software.
- Share with non-technical colleagues who just want a file they can double-click.
Convert exactly the rows and columns you need
Because the viewer opens your Parquet file in a real query engine, you don't have to export everything. Before you hit export you can:
- Pick columns — drop the ones you don't need so the CSV stays small.
- Filter and sort rows with point-and-click controls, or write SQL for anything more involved.
- Preview the result in the grid first, so the CSV is exactly what you expect.
The export carries the data values themselves — numbers, dates, and timestamps come out as readable text, not raw Parquet encodings.
Private by design. Your file is read and converted locally — in your browser on the web, or on-device in the macOS app. The contents are never uploaded to us or to any third party. Read our privacy policy.
How large a file can I convert? The free web viewer exports up to 1,000 rows — plenty to try it out or convert small files. Pro raises that to 100,000 rows in the browser, and the macOS app exports files of any size, from a few rows to hundreds of millions, with the same local-only privacy.
