Bulk Image Resizer

Key Features Explained

• Aspect Ratio Logic: If "Lock Aspect Ratio" is checked, the code calculates the scale factor $s = \min(\frac{w_{target}}{w_{orig}}, \frac{h_{target}}{h_{orig}})$ to ensure the image fits within your dimensions without stretching.

• Compression: The toBlob method is used with the specified quality parameter ($0.1$ to $1.0$). Lowering this can significantly reduce file size for web use.

• Zip Bundling: Instead of triggering dozens of individual downloads (which browsers often block), it uses JSZip to package everything into one tidy folder.

• Client-Side Processing: No images are uploaded to a server. This makes it 100% private and works instantly even with large 4K photos.

Bulk Image Resizer

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Width (px)

Height (px)

Quality (0.1 - 1.0)

Lock Aspect Ratio