Free tools · No installation

Open, inspect, and convert Parquet files

Open a Parquet file to explore its rows and columns. Need CSV? Use the batch converter to upload your files and download the results.

Local viewing and editing up to 100 MB. Files opened in this local viewer stay in your browser unless you choose an upload tool. CSV/JSON exports require a fully decoded table; paged views download Parquet.

Choose one Parquet file
Inspect, search or edit rows
Download a copy or export a decoded view

Parquet tools

Choose the job you need to do

Large-file viewerPreview large files and find the rows you need.Parquet file viewerExplore rows, column types, and file details.Compress ParquetCreate a smaller copy of a supported Parquet file.Parquet to CSVUpload multiple files and download a CSV for each.Sample Parquet filesOpen or download documented files for testing.

Plain answers

Parquet file questions

Can I edit a Parquet file online?+

Open a local file up to 100 MB to inspect rows and column types, search, filter and edit supported flat primitive schemas. Save a new Parquet copy; nested or unsupported schemas have explicit editing limits.

When can I export CSV or JSON?+

Use Parquet to CSV to upload multiple files and download a CSV for each. In the viewer, CSV and JSON export is available for fully loaded tables; paged views offer the original Parquet file.

Do I need to upload my file?+

The local viewer opens files in your browser. The batch CSV converter and SQL tools upload the files you choose when you start those tasks. No signup is required.