Parquet to CSV Converter

Convert a .parquet file to CSV, JSON or Excel after checking its schema and data.

Schema & metadata
Snappy, Zstd, Gzip
Sort & search
No upload

Drop a Parquet file here. CSV, TSV, XLSX and Parquet all work.

Converting Parquet to CSV

Parquet is efficient for analytics but most business tools still want CSV or Excel. This converter reads the Parquet file in your browser, shows its schema and the data, and writes CSV (comma, semicolon or tab), JSON or .xlsx. Large 64-bit integers are written exactly, timestamps as ISO date-times, and nested values as JSON text.

How to convert Parquet to CSV

Choose Open File and pick the .parquet file, or drag it onto the page.
Check the schema panel for columns, types and compression.
Sort, search and inspect values in the table.
Export to CSV, JSON or Excel.

Reading Parquet types

INT64 values beyond JavaScript’s safe integer range are shown exactly, as text.
Timestamps are shown in UTC as YYYY-MM-DD HH:MM:SS.
Lists, maps and structs are shown as JSON.
Up to 500,000 rows are loaded; the total row count comes from the file footer.

Why use this Parquet to CSV converter

Check before convertingSee the schema, types and row count so there are no surprises.
Exact valuesLarge integers and timestamps are written without loss of precision.
Export what you needDownload the data, or just the rows matching your search, as CSV, TSV, JSON, Excel or a Markdown table.
Private by designThe file is read by your browser and never uploaded, so customer lists, payroll exports and financial data stay on your computer.

Files you can open

Format	Extensions	Supported
CSV / TSV	.csv, .tsv, .txt	Comma, semicolon, tab or pipe; UTF-8, UTF-16 or Windows-1252
Excel workbook	.xlsx, .xlsm	All sheets, cached formula values, date and percent formats
Apache Parquet	.parquet	Snappy, Gzip, Zstd, Brotli and LZ4; schema and row groups

Common uses

Data engineering. Peek at a pipeline output without spinning up a notebook.
Analysts. Open a Parquet export without Python.
Debugging. Check types, nulls and compression of a file.
Sharing. Convert a Parquet extract to CSV or Excel for colleagues.

Related tools: CSV to JSON, JSON to CSV, JSON viewer and HTML table to Markdown.

Example: Parquet to Excel for a colleague

Open sample-orders.parquet, choose Excel (.xlsx) under Export and download: the numeric columns stay numeric in Excel.

What to expect from the result

The first 500,000 rows are loaded. Encrypted Parquet files are not supported. Very wide nested schemas are flattened to top-level columns, with nested values shown as JSON.