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Tools/File viewers/Parquet Viewer

Parquet File Viewer Online

Inspect Parquet columnar data, schema, and the first few hundred rows in your browser.

Recommended tutorials

How to use Parquet File Viewer Online: a practical step-by-step guideParquet File Viewer Online troubleshooting: formats, blank results, and compatibility
Private local workspace
The selected file stays on this device
PARQUET≤ 150 MB

How to open PARQUET files online

Apache Parquet is a common columnar format in data engineering, analytics, and machine learning. Inspect it without starting Python, Spark, or a database.

  1. Choose a .parquet file.
  2. The browser reads metadata and up to 500 rows.
  3. Inspect fields and values, then export the preview to CSV if needed.

Why use this viewer

  • No Python or Spark
  • Your file is read and processed only in this browser tab. It is never uploaded to FreeTool servers.
  • Quick schema and sample inspection

Compatibility and limitations

  • The first version previews up to 500 rows to control memory
  • Special compression support depends on the browser parser

Frequently asked questions

Does it read the whole large file?

The browser receives your selected local file, but only a limited number of rows are assembled for the table.

Can it convert to CSV?

It exports the displayed preview rows, not necessarily an entire huge dataset.