Resize and compress images directly in your browser. Nothing is uploaded to any server — your files never leave your device.
The Image Resizer lets you scale images to precise pixel dimensions or a percentage of their original size, with the option to lock or override the aspect ratio — all processed locally in your browser. Resizing images is a daily task for web developers, content creators, and designers: platform upload requirements specify exact dimensions, email clients struggle with oversized images, and pages load faster when images are appropriately sized for their display context. This tool gives you full control — enter exact width and height in pixels, or set a percentage scale factor and let the tool calculate the output dimensions. The aspect ratio lock prevents unintentional distortion by automatically adjusting the other dimension when you change one. The resized image is generated using the Canvas API and downloaded directly to your device without any server processing.
Upload your image and enter the desired output width and height in pixels, or set a percentage scale. Toggle the aspect ratio lock to maintain proportions or allow free resizing. Click Resize to apply the changes and then Download to save the resized image in your chosen format.