Open the Parquet file
Drop a .parquet file. Its schema and the first rows appear right away.
WAVESPEED AI PARQUET TO CSV Your data stays on your device
100% FREE
Parquet to CSV ConverterTurn .parquet into a CSV anyone can open.
Open a Parquet file, check its schema and rows, then save it as CSV with a header row.
Filter rows or choose columns first, or save Excel or JSON instead.
Preview firstFilter before savingNo upload
No sign-up No upload No watermark
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Files are read and queried in this browser tab. Nothing is uploaded.
THREE SIMPLE STEPS
How to use the Parquet to CSV
Filter if needed
Use the filter row, or SQL to pick columns: SELECT a, b FROM data.
Download CSV
Save what you see as CSV, or pick Excel or JSON.
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Parquet to CSV FAQ
Is my file uploaded?
No. It is converted in your browser tab and never leaves your device.
What happens to nested columns?
Lists and structs are written as text in CSV. To spread a struct into columns, select its fields in SQL (SELECT s.a, s.b FROM data).
How big a file can I convert?
The CSV is built in memory before it downloads, so outputs of a few hundred MB are fine on a typical computer. For bigger data, filter or pick columns first.
Are dates kept?
Yes, written as ISO dates and timestamps (2024-03-15, 2024-03-15 14:30:00) that spreadsheets recognise.
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Parquet to CSV Converter
Preview first · Filter before saving · No upload