Batch Resize Images

Resize images in bulk with four flexible modes: by width, by height, by exact dimensions, or by percentage.

Resize Settings
Width:
px
Height: Auto (maintains aspect ratio)
Width: Auto (maintains aspect ratio)
Height:
px
Width:
px
Height:
px
%

Drag & drop images here, or click to select files

Supports JPG, PNG, WebP, BMP and more — multi-select enabled

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0 images selected
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How to Batch Resize Images Online

Our free batch image resizer offers four flexible modes to resize multiple images at once. Use "By Width" or "By Height" to set one dimension while maintaining the original aspect ratio — perfect for creating consistently sized images for websites or social media.

The "Width and Height" mode lets you set exact pixel dimensions for all images, while "By Percentage" scales images up or down by a specified percentage. All four modes process your entire batch in seconds, right in your browser.

Whether you're preparing images for a website, optimizing for email, or creating thumbnails for a gallery, this tool handles it all. Output in JPG with adjustable quality or PNG for lossless results. In "folder mode" (Chrome/Edge), save resized images directly to disk without any ZIP download.

Frequently Asked Questions

What resize modes are available?

Four modes: By Width (auto height, maintains aspect ratio), By Height (auto width, maintains aspect ratio), Width and Height (set exact dimensions), and By Percentage (scale by a percentage value).

Does resizing maintain the aspect ratio?

Yes, when using "By Width" or "By Height" mode, the aspect ratio is automatically maintained. The "Width and Height" mode sets exact dimensions, which may change the aspect ratio.

Is there a limit on how many images I can resize?

No fixed limit. You can resize as many images as your browser memory allows. Resized files are packaged into a ZIP download or saved directly to a folder.

Can I upscale images with this tool?

Yes. You can set dimensions larger than the original image or use a percentage over 100%. However, upscaling may result in lower quality since new pixel data is interpolated.

What output formats are supported?

Resized images can be output as JPG (with adjustable quality from 1-100%) or PNG (lossless). Choose JPG for smaller file sizes or PNG when you need transparency or lossless quality.

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