RData Viewer

A VS Code extension to view .rds and .RData files directly in the editor using an interactive data grid.

Features

• View RDS files: Open .rds files containing R data frames
• View RData files: Open .RData files with multiple objects and switch between them
• Interactive grid: Powered by Perspective.js - sort, filter, and explore your data
• No R installation required: Uses webR (WebAssembly) to read R data files
• Theme support: Glassmorphism UI that adapts to your VS Code theme

Usage

1. Open any .rds, .RDS, .RData, .RDATA, or .rdata file
2. The data will load automatically in an interactive grid

If you have the R extension installed, VS Code may open RData files as text first. In that case:

• Click the table icon in the editor title bar, or
• Right-click the file in Explorer → Open with RData Viewer

Supported Data Types

• Data frames (displayed as interactive grid)
• Matrices and lists (automatically converted to data frame)

For .RData files with multiple objects, use the dropdown in the toolbar to switch between them.

Limitations

• Large files are limited to 100,000 rows for performance
• Only data frame-like objects can be displayed (vectors and complex nested lists are not yet supported)
• First load may take a few seconds while webR initializes

Requirements

• VS Code 1.85.0 or higher
• Internet connection (for loading webR and Perspective.js from CDN on first use)

License

MIT