About this tool
The percentage is already set to 50%. Width and height are halved, leaving a quarter of the pixels and usually a much smaller file — a quick way to shrink many photos.
Resize images in bulk by pixels or percentage, with or without keeping the aspect ratio. High-quality Pica resampling keeps downscaled images sharp, and processing can be cancelled at any time.
How to use
Upload images, choose pixels or percentage and a resampling method, and set aspect-ratio behavior.
Process, check dimensions and sizes, then download files individually or as a ZIP.
For example, set a 2,400 px wide image to 1,200 px wide and leave height blank to keep its aspect ratio. With both dimensions, the image fits inside the box by default; disable aspect ratio to use those exact dimensions.
Pica resampling can be cancelled. With aspect ratio enabled, width and height define a bounding box; disabling it allows stretching. Input/output: up to 45 MP and 16384 px per side.
Choose Pica resampling or a faster browser resize. Input/output is capped at 45 MP and 16384 px per side. Use Image cropper to keep only part of the image.
Frequently asked questions
Will the result look blurry?
High-quality resampling keeps downscaled images sharp.
Can I use another percentage?
Yes, enter any value from 1% to 400%.
How are width and height used with aspect ratio on?
They form a bounding box; each image scales proportionally to fit inside it without distortion. Turn the option off to stretch to exact dimensions.