Resize Image by Percentage

Scale one or multiple images by percentage (1% to 200%) directly in your browser. Instantly preview new pixel dimensions and reduced file size.

• One-click scale presets (25%, 50%, 75%, 125%, 150%, 200%) plus fine slider
• Live calculation of resulting pixel width × height for every uploaded file
• Preserves proportional aspect ratio automatically across mixed batch uploads
• Supports JPG, PNG, and WebP output formats

Frequently Asked Questions

Why does resizing by 50% reduce pixel count by 75%?

Because image area is Width × Height. Halving both dimensions (0.5 × 0.5 = 0.25) leaves one-quarter of the total pixels, which dramatically reduces file size.

Can I batch-scale both portrait and landscape photos together?

Yes. Percentage scaling multiplies each photo’s own width and height by the chosen factor, keeping every image in its proper orientation.