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Parquet to CSV Converter

Convert Apache Parquet files to CSV format in your browser

Drop your file here or click to upload

Supports Parquet files up to 100MB

How to Convert

  1. Drop your .parquet file into the upload area
  2. Preview the table to confirm the data looks right
  3. Download the converted CSV file

Features

  • Opens .parquet files directly in your browser
  • Supports Snappy, Gzip, and Zstandard compression
  • Preview rows and columns before downloading
  • Handles typed columns (numbers, booleans, dates)
  • No upload — files never leave your device

Use Cases

  • Inspect Parquet exports from Spark, Pandas, or DuckDB without installing anything
  • Share columnar data with spreadsheet users
  • Spot-check data lake files before loading them into a pipeline

Frequently Asked Questions

Do I need to install anything to open a Parquet file?

No. This converter reads Apache Parquet entirely in your browser using JavaScript — no Python, Spark, or command-line tools required.

Which Parquet compression codecs are supported?

Uncompressed, Snappy, Gzip, and Zstandard — which covers files produced by Pandas, Spark, DuckDB, and most data tools.

Is my data uploaded to a server?

Never. The file is parsed locally in your browser, so it works offline and your data stays private.

How are nested or complex Parquet columns handled?

Nested structures (lists, maps, structs) are serialized to JSON strings in the CSV so no data is lost.

Related Tools

CSV to Parquet Converter

Convert CSV files to Apache Parquet format in your browser

CSV Viewer

View CSV files in a spreadsheet-style grid with sorting, filtering, and search

CSV to Excel Converter

Convert CSV files to Excel format (.xlsx)

Need to convert the other way? Try our Csv To Parquet