Image Resizer
Change image dimensions instantly. Scale up or down while maintaining crisp quality. Processed entirely in your browser for absolute privacy.
Upload Your Image
Drag and drop your file here, or click to browse
About Image Resizer
Image Resizer is a free online design utility tailored to help developers, designers, and content creators quickly adjust the dimensions of their visual assets. Whether you need exact pixel dimensions for a hero image, a social media post, or profile avatar, this tool provides precision control without requiring heavy desktop software.
Utilizing client-side rendering technology, this tool processes your images locally in your browser. No files are ever uploaded to our servers, ensuring your workflow remains exceptionally fast and strictly private.
How To Resize an Image
- Upload your photo or graphic by dragging it into the designated drop zone.
- Enter your target Width or Height in pixels. Keep the lock icon closed to automatically calculate the matching dimension and maintain the aspect ratio.
- Select your desired output format (JPG, PNG, or WebP).
- Click "Resize Image" and instantly download your new asset.
Features & Benefits
Aspect Ratio Lock
Prevent stretching and distortion. Our smart calculator automatically adjusts dimensions to keep your images perfectly proportioned.
100% Private
Client-side processing means zero server uploads. Your proprietary graphics and personal photos remain exclusively on your device.
Format Conversion
Easily switch file types while resizing. Convert a heavy PNG to a modern WebP format in a single click.
High-Quality Scaling
Utilizing advanced Canvas API smoothing techniques, your images retain clarity and sharpness whether scaling down for thumbnails or up for headers.