Fast Parquet Viewer

A fast, lightweight desktop viewer for .parquet files, built with Rust and egui. Has a modern interface that opens extremely fast and can be bound to .parquet files to make it the default app for opening parquet files.

Windows binary available and compiled under target/release/FastParquetViewer.exe.

Features

• Drag & drop a .parquet or .parq file onto the window to open it
• File dialog via the Open… button or Ctrl+O
• Virtual scrolling — handles large files without loading the full table into view at once
• Column sorting — click any column header to sort ascending/descending (numeric-aware)
• Search / filter — Ctrl+F to filter rows by any matching cell value, with match highlighting
• Schema display — column names and data types shown in the header
• Status bar — shows row/column count and file size
• CLI support — pass a file path as an argument: ParquetViewer.exe data.parquet
• Dark theme

Download

Download the latest FastParquetViewer.exe from the Releases page. It is a single self-contained executable — no installer or additional files required.

Building from source

Requires Rust (stable).

git clone https://github.com/jaungiers/Fast-Parquet-Viewer
cd Fast-Parquet-Viewer
cargo build --release

Dependencies

Crate	Purpose
eframe / egui	GUI framework
egui_extras	Virtual-scroll table widget
arrow	Column data model
parquet	Parquet file reading
rfd	Native file dialog

Author

Jakob Aungiers