Batch Image Resizer
Resize multiple JPG, PNG, and WebP images at once while keeping dimensions, aspect ratios, and output settings under your control.
Upload Images
Drop multiple JPG, PNG, or WebP images here.
Up to 50 images at once. Processed entirely in your browser.
Batch Image Resizer
Resizing a single image is easy, but applying the exact same dimensions across dozens of product photos, marketing assets, or portfolio galleries can be a tedious and repetitive task. Our free Batch Image Resizer solves this by letting you upload multiple images at once, configure global resize rules, and process them all simultaneously in your browser. Whether you need exact pixel dimensions, a fixed maximum width for an article, or a proportional percentage reduction, the tool scales the entire batch accurately.
How to Resize Multiple Images
Batch processing is designed to be as simple as possible. Follow these steps to resize your files in bulk:
- Upload your images: Drag and drop up to 50 JPG, PNG, or WebP files into the upload zone.
- Choose the resize method: Select Exact Dimensions, Max Dimensions, or Percentage based on your goal.
- Set the target dimensions: Enter the width and height you want to achieve.
- Choose whether to preserve aspect ratio: Leave the lock icon active to prevent stretching.
- Start processing: Click the Start Processing button to resize the images one by one natively in your browser.
- Download individual files or the ZIP: Download each image individually, or use the "Download ZIP" button to get all files in a single archive.
Exact Dimensions
If you need all images to be precisely the same size (e.g., 1080×1080px for social media), use the Exact Dimensions mode. If you lock the aspect ratio, the tool will automatically adjust the secondary dimension so your image fits perfectly without distortion.
Max Dimensions
When preparing images for a blog or responsive website, you usually just want to make sure an image isn't larger than a specific bounding box (e.g., max width of 1920px). This proportional resizing mode shrinks large images while leaving smaller ones intact.
Preserve Image Quality
Downscaling images typically preserves visual sharpness, but resizing cannot restore missing detail. For optimal quality, we recommend starting with the highest resolution source files available. By default, our batch processor will not upscale (enlarge) images that are smaller than your target dimensions to prevent pixelation and blurring. You can explicitly override this behavior by checking "Allow upscaling" in the settings panel. If you are converting images to JPG format, you also have direct control over the JPEG compression quality to balance file size and visual fidelity.
Common Use Cases
- Ecommerce product images: Standardizing thousands of product shots to the exact same square aspect ratio and width.
- Website and blog images: Ensuring hero images and inline content photos don't exceed your content container's max width (e.g. 1200px).
- Social media assets: Preparing entire campaign folders for Instagram or Twitter requirements.
- Email graphics: Downscaling high-resolution assets to 600px width for newsletter templates.
Frequently Asked Questions
Can I resize multiple images at once?
Yes, you can upload up to 50 images simultaneously and batch process them. The tool will automatically queue the images, resize them based on your exact specifications, and prepare them for a bulk ZIP download.
What image formats are supported?
Our Batch Image Resizer currently supports JPG, JPEG, PNG, and WebP file formats. You can optionally convert all of them to a standard unified output format during the process.
Can I resize images by percentage?
Yes, you can use the Percentage mode to uniformly scale all images in a batch. For example, setting it to 50% will reduce the width and height of every uploaded image by exactly half.
Will smaller images be enlarged automatically?
No, by default our tool will never upscale an image past its original pixel dimensions to prevent blurring. You can explicitly enable the "Allow upscaling" option if you intentionally want smaller images to be enlarged.
Are my images stored on your servers?
No. The Batch Image Resizer processes your images locally in your web browser. Your images are never permanently uploaded to our servers, ensuring your data remains private and secure.