

High-fidelity dimension control. Resize images to any width and height with optional aspect ratio lock. Browser-first, zero-upload processing.
All resizing occurs locally in your browser. Your images remain private.
Upload JPG, PNG, WEBP
Image Resizer Pro allows you to specify exact pixel dimensions for your images. Whether you need a thumbnail for a website, a social media banner, or a custom-sized print, our tool redraws your image onto a new canvas with surgical accuracy, preserving quality at every size.
Toggle the aspect ratio lock to maintain the original proportions of your image, preventing distortion. For creative purposes, you can unlock it to freely adjust width and height independently. This gives you complete control over your image's final composition.
Your image is processed entirely within your browser using the HTML5 Canvas API. No data is ever sent to a server. This makes Zrubix the ideal choice for resizing confidential photos, proprietary graphics, or any visual content that requires absolute privacy.
Every digital platform has specific image dimension requirements. A hero image for a website might need to be 1920px wide, while an Instagram post is ideally 1080x1080px. Resizing images correctly is essential for ensuring your visuals display crisply without awkward cropping or distortion. Zrubix Image Resizer Pro gives you the precision tools to meet any specification.
Why is browser-based resizing superior for quick tasks? Desktop software like Photoshop is powerful but cumbersome for simple resizing jobs. Our tool is designed for speed and convenience. Upload, set your dimensions, and download—all in seconds, from any device. It's the perfect utility for marketers, bloggers, and developers who need fast results.
Under the hood, Zrubix uses the HTML5 Canvas API to perform image transformations. When you click "Resize Image," your original is drawn onto a new canvas element with the exact dimensions you specified. The canvas then exports this redrawn image as a new file, which you can download. This is a lossless process for PNG files and high-quality for JPEGs.
The aspect ratio lock calculates the proportional height or width automatically based on the original image's ratio. This prevents the common mistake of stretching an image, which leads to a distorted, unprofessional appearance. For freeform resizing, simply disable the lock.
Image Resizer Pro is part of the larger Zrubix graphics toolkit. After resizing your image, you might want to compress it for web using our Image Compressor, or convert it to a different format like WEBP with our suite of converters. Our tools work in harmony to provide a complete image optimization workflow, all within your browser.
Experience the precision and speed that only a local-first web application can provide. Trust Zrubix for all your image scaling needs.
Recommended Workflow Partners