FAQ

What is a Parquet file?

Apache Parquet is a columnar file format designed for analytics. It stores data by columns to compress better and scan faster than row-based formats like CSV.

How do I open an Apache Parquet file online for free?

Click “Upload” or drag your parquet file into the viewer. Processing happens locally in your browser—no account or server upload required.

Does this parquet viewer work on Windows, Mac, and Linux?

Yes. It is browser-based, so the same experience works on Windows, macOS, and Linux without installing desktop apps.

Can I inspect schema and column types?

Use the Schema panel to review column names, data types, and metadata before sharing or loading the file into pipelines.

How can I query parquet files with SQL in the browser?

Open the SQL editor, write a SELECT query, and run it. Results stay on your device for privacy and quick iteration.