About CropTransparent
Fast and simple image cropping
What is CropTransparent?
A lightweight web app that automatically crops transparent areas from PNG/GIF/WEBP images and removes uniform backgrounds from JPEG images.
How It Works
Uses PIL/Pillow and NumPy for smart detection:
Transparent images: Crops based on alpha channel
JPEG/opaque images: Detects uniform backgrounds from corners and crops
Privacy & Security
All processing happens in memory. No images are saved to disk. Results are streamed directly to your browser.
Open Source
MIT licensed open source software. View, modify, and distribute freely.