A VS Code extension that compresses images in place, right from the Explorer context menu — a fully local replacement for TinyPNG.
Features
Right-click an image (or a folder, or a multi-selection) in the Explorer → Optimize Image. Files are re-encoded and overwritten in place.
Preview & Optimize Image… opens a side-by-side preview so you can see the result before committing.
Optimize Image As… re-encodes a single file to a new name or format.
Folders recurse and optimize every supported image inside.
Lossy, TinyPNG-class compression via sharp — mozjpeg for JPEG, libimagequant palette quantization for PNG, plus WebP, AVIF, TIFF, and GIF.
Everything runs locally — images never leave your machine.
Supported Formats
PNG, JPEG, WebP, AVIF, TIFF, GIF
Settings
Setting
Default
Description
imageOptimizer.jpegQuality
80
JPEG quality (1–100).
imageOptimizer.pngQuality
80
PNG palette-quantization quality target.
imageOptimizer.webpQuality
80
WebP / AVIF quality.
imageOptimizer.skipIfLargerOrEqual
true
Keep the original if optimization does not reduce file size.
imageOptimizer.minSavingsPercent
0
Only overwrite if savings meet this percent threshold.
imageOptimizer.notificationSeconds
5
How long the result notification stays on screen.
Contributing
git clone https://github.com/john-rock/vscimg.git
cd vscimg
npm install
npm run watch # esbuild in watch mode
# press F5 in VS Code to launch an Extension Development Host
To package locally:
npm run package
code --install-extension vscimg-*.vsix
