Resize images online
Change the pixel dimensions of your JPG, PNG, and WebP images. 100% private in your browser.
Select image to resize
Drag and drop your JPG, PNG, WebP, or SVG file here, or click to browse from your device.
How to resize an image online
Follow three simple steps to scale your photos to exact pixel dimensions.
Select your image
Drag and drop your image file into the box above or click to browse from your device.
Set dimensions
Enter your desired width and height in pixels. Toggle the aspect ratio lock to prevent distortion.
Download output
Click resize and download to immediately save the newly dimensioned image to your device.
Key features of Velenstac Image Resizer
Proportional scaling
Lock aspect ratio with a single click to maintain your photo's original balance without manual calculations.
100% Client-side privacy
Everything executes in your browser's local memory. Photos are never uploaded to any cloud server or database.
Fast & free
No sign-up or subscription required. Resize social media headers, profile pictures, and web graphics instantly.
Frequently asked questions
How does the aspect ratio lock work?
When the aspect ratio lock is enabled, changing the width automatically updates the height proportionally (and vice versa) based on the image's original dimensions. This prevents your image from stretching or looking distorted.
Will resizing my image reduce its quality?
Downscaling (making an image smaller) uses high-quality bicubic interpolation to preserve sharpness and detail. Upscaling (making an image significantly larger than original) may result in some softness because extra pixels must be interpolated.
Are my photos uploaded to any server?
No. All image resizing operations take place 100% inside your web browser using HTML5 Canvas technology. Your photos never leave your device.
What image formats can I resize?
You can resize JPG, JPEG, PNG, WebP, SVG, and BMP images. The output is downloaded in your image's matching format.