Image Resize
Resize images to exact dimensions or by percentage
Drop your image here or click to browse
Supports JPEG, PNG, WebP and more
What is the Image Resize tool?
Written and maintained by the BitConvert team · Feb 27, 2026
Image Resize changes the pixel dimensions of an image, either to exact width and height values or by scaling to a percentage of the original. It is built for the everyday need to hit a specific size requirement without opening a full photo editor.
An aspect ratio lock keeps width and height in proportion, so adjusting one dimension updates the other automatically and your image never looks stretched or squashed. Resizing is handled by the browser's Canvas API using smooth interpolation, which keeps downscaled images sharp and clean. Reducing size generally preserves quality well, while enlarging beyond the original resolution can soften detail. Every operation runs on your own device, so nothing is uploaded and your photos stay private.
Key Features
Pixels or Percentage
Enter exact width and height, or scale the whole image by a percentage.
Aspect Ratio Lock
Keep proportions intact so changing one dimension adjusts the other automatically.
Smooth Interpolation
Canvas-based scaling keeps downscaled images crisp instead of jagged.
Private Processing
All resizing happens in your browser with no uploads to any server.
Common Use Cases
Resize a profile photo or banner to the exact pixel dimensions a social platform requires. Scale down a huge camera image for the web so pages load faster. Prepare an image at the precise size an app store, ad network, or print service asks for. Create a smaller thumbnail from a full-size picture. Batch a workflow by quickly matching several images to one target width for a gallery.
How It Works
Upload Image
Drag and drop or click to select an image
Set Dimensions
Enter width, height, or percentage
Download
Download the resized image
Frequently Asked Questions
Last updated: Feb 27, 2026