ParquetPeek — All features

Open Parquet files locally, explore their columns and rows, and export the view you need.

Free and open-source. View source on GitHub.

Opening & browsing files

Flexible file opening — Open .parquet or .pq files with the file picker, drag and drop, or the recent-files list.
Multiple file tabs — Keep several files open and switch between them in tabs.
Paged browsing — Load rows a page at a time instead of loading the whole file into the table.
File overview — Check file size, row count, and column count.
Sample file — Generate a 1,500-row demo file to explore the app without supplying your own data.

Schema sidebar — Browse column names and data types with recognizable type icons.
Column search — Find a column quickly and show or hide it while preserving column order.
Column statistics — Inspect filled, empty, and distinct-value counts, minimum and maximum values, and the most common values.
Filter from a value — Select a common value in column details to filter the table to it.

Quick text search — Search across text columns in the open file.
Filter builder — Combine equality, comparison, contains, starts-with, ends-with, and empty-value conditions.
Multiple search values — Match any of several comma-separated text values, or exclude rows containing any of them.
Inputs suited to the data — Use number, date, time, or boolean controls, with validation before a filter is added.
Value dropdowns — Choose from a complete list for columns with up to 15 distinct values.
Column sorting — Click a column to cycle through ascending order, descending order, and no sorting.

Row detail panel — Inspect a selected row separately from the table and copy individual values.
Nested data explorer — Expand structured values such as lists and objects in a tree, loading large branches in manageable groups.
Copy row as JSON — Copy a complete row while retaining nested values and the digits of large integers.

Parquet, CSV, and JSON exports — Save the current view as a new Parquet file, a CSV spreadsheet, or JSON data.
Export exactly your view — Export visible columns using the active search, filters, and sort order.
Export row limit — Set a cap on the number of rows exported.
Open exported files — Open the exported file or reveal its location after export.
Local file processing — Explore your files on your computer without uploading them to a hosted data service.