Image Resizer

Need to resize an image for a website, social media post, product listing, email, or document? Use this free Image Resizer to change image dimensions by percentage or exact pixel size.

Upload one image or multiple images, choose how large or small they should be, and download the resized result. Your images are processed directly in your browser, so you can resize files quickly without installing software.

1. Drag and drop images into the upload area, or click to select files.

2. Choose Percentage to scale images up or down proportionally.

3. Choose Pixels to enter a custom width or height.

4. Keep Maintain Aspect Ratio enabled to avoid stretching the image.

5. Review the new dimensions and estimated output size.

6. Click the resize button to download your image.

When resizing multiple images, the tool creates a ZIP file containing all resized images.

Resize Images by Percentage

Percentage resizing is useful when you want to reduce or enlarge an image without calculating exact dimensions.

For example:

• 50% reduces a 2000 × 1200 pixel image to 1000 × 600 pixels.

• 25% reduces the same image to 500 × 300 pixels.

• 150% enlarges the image to 3000 × 1800 pixels.

This is a simple option when you need every uploaded image to be scaled by the same amount.

Resize Images by Exact Dimensions

Use pixel mode when you need a specific image width or height.

For example:

• Resize a banner to 1200 × 630 pixels for social sharing.

• Resize a product image to 800 × 800 pixels.

• Resize a profile image to 400 × 400 pixels.

• Resize a blog image to 1280 pixels wide.

When aspect ratio lock is enabled, the second dimension updates automatically to preserve the original image shape.

Image aspect ratio is the relationship between an image’s width and height.

For example, an image that is 1200 × 800 pixels has a 3:2 aspect ratio. If you resize only the width and do not adjust the height correctly, the image can become stretched or squashed.

Keeping aspect ratio enabled is recommended for most images because it preserves the original proportions.

Turn it off only when you intentionally need to force an image into a fixed size and understand that the image may be distorted.

This Image Resizer supports multiple image uploads. Add several files, apply one resize setting to all of them, and download the resized results together.

Bulk resizing is useful for:

• Ecommerce product images

• Blog image libraries

• Website gallery images

• Social media image batches

• Portfolio images

• Presentation assets

• Image folders prepared for upload

Each image keeps its own proportions when aspect ratio is enabled.

Large images can slow down webpages, especially on mobile connections. Resizing images to the dimensions actually required by your layout can reduce unnecessary file size and improve page loading performance.

For example, if your website displays an image at 800 pixels wide, uploading a 5000-pixel-wide original image is often unnecessary.

Before uploading an image to your website, consider:

• The maximum displayed width on desktop

• The image size on mobile screens

• Whether the image is used in a gallery, blog post, product page, or hero section

• Whether a compressed version is also needed

• Whether the image needs to remain sharp on high-resolution screens

For smaller file sizes after resizing, use the Image Batch Compressor.

The right image dimensions depend on where the image will be used.

These are starting points. Always check the requirements of the platform or website theme where the image will be used.

You can upload image files directly from your device. For the most predictable resized output, use common web image formats such as:

• JPG or JPEG

• PNG

• WebP

If you resize an image with transparency, test the downloaded result before using it on a live website.

The image resizing process runs locally in your browser. Your selected images are used to create the resized download and are not sent to a separate image-processing server.

This makes the tool useful when you need a quick resize for personal, business, website, or design work.

Image resizing changes the dimensions of an image, such as reducing a photo from 4000 pixels wide to 1200 pixels wide.

Image compression reduces file size by optimizing image data and quality settings.

For best website performance, resize an image to the correct display dimensions first, then compress it if needed.