Batch Image Resizer - Free Online Tool | PivaBox

Resize multiple images at once — set dimensions, format, and quality for all

How to Batch Resize Images

1. Click Add Images to upload multiple images at once — you can drag and drop or click to select files
2. Choose a Resize Mode (By Width, By Height, By Percentage, Fit Within, or Exact dimensions), then configure the target size, output format (PNG, JPEG, WebP, or Original), and quality settings
3. Click Process All to resize every image, review the results table showing original and new sizes with size reduction, then click Download All to save all resized images

Frequently Asked Questions

Is Batch Image Resizer free?

Yes, PivaBox Batch Image Resizer is completely free. All image processing happens locally in your browser using the Canvas API — no uploads to any server.

What resize modes are available?

Five mode options: <strong>By Width</strong> sets a target width and proportionally scales height (or both if aspect ratio is off), <strong>By Height</strong> scales by target height, <strong>By Percentage</strong> scales uniformly by a percentage, <strong>Fit Within</strong> ensures the image fits inside a maximum width and height without cropping, and <strong>Exact</strong> resizes to a precise pixel dimension — great for thumbnails and fixed-size requirements.

Are my images uploaded to a server?

No. All resizing runs entirely in your browser using the Canvas API. Your images never leave your device, ensuring complete privacy and security.