When to use Parquet viewer?
Inspect a local Parquet file: typed schema, row count and data preview, then produce CSV when needed.
- Review a data delivery
- Open Parquet received from a vendor
- Preview a file before pipeline ingestion
Spreadsheets & data · ONLINE TOOL
Parquet viewer
Explore local Parquet files: choose columns, filter, sort, page through results and export a selection or the complete dataset.
Local processingNo account required
CONCRETE EXAMPLE
Parquet → preview
BEFORE
→metrics.parquet
AFTER
Schema + filters/sort/columns + targeted CSV export
Your data stays in the browser
Processed content is not uploaded to WorkToolset. Required libraries may be loaded by the site, but the file stays in the browser.
Limitations to know
- First use downloads DuckDB-WASM.
- The 200 MB limit helps avoid exhausting memory on modest browsers.
A straightforward workflow.
- 1Prepare the required input and choose useful options.
- 2Review previews, warnings and limitations before export.
- 3Download a new copy or report: the original stays unchanged.
Frequently asked questions
Are my files uploaded to WorkToolset?
No. This tool runs locally in your browser.
Is my original file modified?
No. WorkToolset creates a new copy or export.
Do I need an account?
No for this free tool. Accounts are mainly used for favorites, presets and future workflows.