LineSight is a VS Code extension that shows the number of lines next to each file in the file explorer, helping you quickly understand the size of files in your project.
Features
Line Count Badges: Shows the number of lines next to each file in the explorer
Auto-Updates: Line counts automatically update when files are edited
Refresh Button: Provides a refresh button in the explorer title bar to manually update counts
Abbreviated Display: Shows abbreviated counts (like "2k" for 2000 lines) as badges
Exact Counts in Tooltips: Hover over a badge to see the exact line count
Skip Large Directories: Ignores directories like node_modules and .git for better performance
Optimized Performance: Minimal background overhead with smart caching and throttling
Screenshot
Usage
Once installed, LineSight will automatically display line counts next to your files in the explorer panel.
Refresh Counts: Click the refresh icon in the explorer title bar to manually refresh line counts
View Exact Count: Hover over a line count badge to see the exact number of lines in the tooltip
Performance Considerations
For very large files (over 5MB), line counts are estimated based on file size
Certain directories are skipped by default to improve performance: node_modules, .git, dist, build, out
The extension uses smart caching to minimize CPU usage
File watchers are limited to common code file types to reduce overhead
Updates are debounced and throttled to prevent performance impact
Installation
Install the extension from the VS Code Marketplace
Restart VS Code
Line counts will automatically appear next to files in the explorer
Extension Settings
This extension has no configurable settings at this time.
