How many images can I resize at once?

You can resize up to 50 images in a single batch. Each image can be up to 50 MB in size. There is no total batch size limit beyond individual file limits.

Can I resize images to different dimensions?

Bulk Resize applies the same target dimensions to all images in the batch. For individual custom sizing, use our Resize Image tool.

What happens if images have different aspect ratios?

You can choose to crop images to fit the target dimensions (removing edges) or pad them with a background color (adding letterbox bars). Alternatively, set only width or height to maintain each image's original aspect ratio.

Can I also compress the images during resizing?

Yes. Enable the compression option and set a quality level. Each image will be both resized and compressed in a single operation.

What output formats are supported?

You can keep each image in its original format or convert everything to JPEG, PNG, or WebP. This is useful for standardizing a mixed batch to a single format.

How long does batch processing take?

Processing time depends on the number of images, their sizes, and your device's performance. Typically, a batch of 50 standard photos completes in under 30 seconds on modern hardware.

Can I customize the output file names?

Yes. You can use sequential numbering, preserve original filenames, or apply dimension-based naming patterns to organize your output files.

Bulk Resize

Resize up to 50 images at once to consistent dimensions. Ideal for product catalogs and galleries.

Drag & drop images to bulk resize

or click to browse

jpg

jpeg

png

webp

gif

bmp

tiff

avif

Max file size: 50 MB | Up to 50 files

How to Use Bulk Resize

Upload Images

Drag and drop or browse to select up to 50 images in any common format. All images are listed with their current dimensions.

Set Target Dimensions

Choose exact dimensions, percentage scaling, or a bounding box. Toggle aspect ratio lock, set crop or pad mode, and optionally enable compression.

Download All

Process the batch and download all resized images as a ZIP archive or individually. Review size savings for each file.

About Bulk Resize

When you need to resize dozens or even hundreds of images to consistent dimensions, processing them one at a time is painfully slow. PicTools' Bulk Resize tool lets you upload up to 50 images and resize them all to the same dimensions in a single operation — entirely in your browser with no files uploaded to any server.

Consistency in image dimensions is critical for professional-looking websites, product catalogs, and image galleries. When images in a grid or listing have varying sizes, the layout appears uneven and unprofessional. E-commerce platforms in particular benefit from standardized product image dimensions, as consistent sizing improves the browsing experience and builds customer trust.

Frequently Asked Questions

Related Tools

Compress Image

Reduce image file size without losing visible quality. Supports JPG, PNG, WebP, and more.

Resize Image

Change image dimensions to exact pixel or percentage values. Maintain aspect ratio or set custom sizes.

Crop Image

Crop images to exact dimensions or aspect ratios. Perfect for social media, thumbnails, and print.

PNG to JPG

Convert PNG images to JPG format for smaller file sizes. Ideal for photographs and web images.

JPG to PNG

Convert JPG images to PNG format for lossless quality and transparency support.

Image to WebP

Convert images to WebP format for superior compression and web performance. Supports transparency.