Cellscope

Stop squinting at raw CSV files. Preview them as clean, filterable tables — right inside VS Code.

Features

One-click preview — Click the Cellscope icon in the editor title bar to instantly view any .csv file as a table
Multi-column filtering — Filter any column with searchable, multi-select checkboxes
Column sorting — Click any column header's sort icon to cycle through ascending, descending, and original order
Smart numeric sorting — Automatically detects numeric columns and sorts them numerically; text columns sort case-insensitively
AND / OR logic — Toggle between AND and OR to combine filters across columns
Virtual scrolling — Handles thousands of rows with smooth, instant rendering
Theme-aware — Automatically adapts to your VS Code light or dark theme
Live row counter — See "Showing X of Y rows" update in real-time as you filter
Export filtered CSV — Export your currently filtered and sorted view as a new CSV file
Copy to clipboard — Copy entire rows as JSON or individual cell values with one click
Fast parsing — Powered by Papa Parse for reliable CSV handling

Open any .csv file in VS Code
Click the Cellscope icon in the editor title bar (top-right)
Start filtering or sorting — click the filter icon or sort icon on any column header

Each column filter dropdown includes:

Search box — Type to quickly find values in columns with many unique entries
Select All / Clear All — Bulk toggle checkboxes
Multi-select checkboxes — Pick exactly which values to show
Apply button — Confirm your selection
Keyboard support — Press Escape to close a dropdown, Enter to apply the current selection

Use the AND/OR toggle in the toolbar to control how filters combine across columns.

Click the sort icon on any column header to cycle: ascending → descending → original order
Only one column can be sorted at a time — clicking a different column resets the previous
Numeric columns are auto-detected and sorted numerically
Empty cells always sort to the bottom regardless of direction

When filters or sorting are active, an Export Filtered CSV button appears in the toolbar
Exports the currently visible rows in their current sort order
Default filename: <original>_filtered.csv

Or install directly from the VS Code Marketplace.

Contributions are welcome!

git clone https://github.com/pman47/cellscope.git
cd cellscope
npm install
npm run compile

Press F5 in VS Code to launch the Extension Development Host.

npm run package
code --install-extension cellscope-*.vsix