Resize images privately in your browser

Image Resizer changes the pixel dimensions of JPG, PNG, and WebP files directly in your browser. Use it when a profile photo, product image, screenshot, or website asset needs a specific width, height, or percentage scale.

The tool previews each uploaded image, keeps aspect ratio locked by default, and downloads files with dimensions included in the filename so resized copies are easy to identify.

1. Upload one or more JPG, PNG, or WebP files.
2. Choose Dimensions to enter width or height, or Percentage to scale by ratio.
3. Keep aspect ratio locked unless you intentionally need a stretched image.
4. Choose whether to keep the original format or export as JPEG, PNG, or WebP.
5. Click Resize images and download the resized files.

• Width or height: set one side and let the other side follow the original aspect ratio.
• Width and height: set both sides when a platform requires exact dimensions.
• Percentage: scale images to a smaller or larger percentage of the original size.
• No upscale by default: the tool avoids making images larger unless you enable upscaling.

This browser-based resizer supports formats the browser can reliably decode and export: JPG, PNG, and WebP. HEIC, RAW, TIFF, and AVIF are not claimed here because support varies by browser and device.

• JPEG output is good for photos and small web files, but it does not preserve transparency.
• PNG output is useful for transparency, UI assets, and lossless-looking graphics.
• WebP output is often a practical web format for smaller images.
• Very large images can be limited by browser memory because processing is local.