Batch Image Resizer

Output size

Width

Height

16:9 4:3 1:1 3:2 9:16 From current W:H

When the lock is on, editing one value updates the other to match.

Save as

Quality 85

Optimize compression (slower)

When sizes differ

Lock Ratio Black Bars Crop to Fit Stretch

Output may be smaller than the target if the source is smaller and upscaling is off.

Advanced

Rename to

Set a prefix and files become prefix_001.jpg, prefix_002.jpg, … Blank keeps each file's original name with the new extension.

Parallel workers

Don't enlarge smaller images

Drop images or click to choose

JPEG · PNG · WebP · AVIF · GIF · BMP. Drop folders too. Everything stays on this device.

Drop images to begin.

0 selected 0 done 0 errors 0 in → 0 out

Add images to see a live preview. Settings you change here apply to the whole batch.