Free Image Resizer
Resize images to custom pixel dimensions or scale percentages instantly. No registration, runs 100% locally in your browser.
Drag and drop your file here
Or click to browse from your device
Max file size: 15MBTake screenshots and annotate directly in your browser
Why use manual online uploaders? With the free Supashot Chrome Extension, capture any visible page, selected region, crop, highlight, blur, and copy instantly without leaving your tab.
What is the Free Image Resizer?
The Image Resizer is an intuitive, web-based tool designed to let you adjust image dimensions in seconds. It allows you to scale images by exact pixel width and height, or resize them using a simple percentage slider. With our toggleable 'Lock Aspect Ratio' feature, you can rest assured that your resized images will never stretch or distort, whether you're working with PNGs, JPEGs, or modern WebP images.
100% Private, Client-Side Processing
Your images never leave your computer. Resizing is handled entirely client-side using the HTML5 Canvas API in your browser's local sandbox memory. This keeps your personal photographs, interface designs, and sensitive documents 100% private. For developers and design teams who capture layouts and need to resize or crop screens frequently, the Supashot Chrome Extension provides direct visual cropping and instant annotations in one fluid, browser-native flow.
How Image Resizer Works
Select or drag and drop your image into the tool.
Enter your desired width or height in pixels, or use the scaling percentage slider.
Check "Lock Aspect Ratio" to keep proportions, and click download to save the resized image.
Frequently Asked Questions
No. If you keep the "Lock Aspect Ratio" option checked, the tool automatically calculates the matching dimension to prevent stretching.
You can upload images up to 15MB. Because all processing is done locally on your device, it handles large images quickly.
You can download your resized image in standard formats like JPEG, PNG, or WebP.