Open Parquet Online

A .parquet file is an export from Spark, pandas, DuckDB or a cloud warehouse. It opens by drag and drop, like any table: no Python, no Spark and no upload to a server.

Open a Parquet file Download for Windows

Free for personal use. Drop a .parquet on the window. Viewing only: it cannot be saved back to Parquet, export to CSV or Excel instead. Windows version — 3.7 MB, no installation: details. Organizations: license.

All the common compression

Snappy, Gzip, LZ4, Zstandard and none — the reader is our own, with no dependencies.

Types are kept

Dates and times, decimals, integers and floats, booleans. Lists show as “a, b”, structs are flattened into columns.

Big files fast

Columns are read on demand: the file opens quickly and work happens on the columns on screen.

Like every other format

Filters, sorting, statistics, pivot tables, charts and export are the same as for DBF and CSV.

Your file never leaves your computer. Parsing happens in the browser, in a background thread. The page's security policy forbids sending data to third-party addresses — you can check this in the developer tools. After the first visit the app keeps working offline.

What it looks like

Parquet with Zstandard compression: dates, numbers and a list of channels in one column; the writer version and compression on the left

More in the article how to open a Parquet file without Python or Spark.

What next

Build a chart from the export.
Convert to CSV or Excel: “Export” in the window, or Tabulens.exe convert file.parquet --to csv from the console.

FAQ

Do I need Python or Spark?

No. The file is read in your browser tab; nothing has to be installed.

Does the file go to a server?

No. Parsing is local.

Can I save changes to Parquet?

No, viewing only. Export the result to CSV, Excel, JSON and other formats.

What is not read?

Brotli and LZO compression and encrypted files.