Online Image Resizer
Resize images by exact pixel dimensions or percentage scale while locking the original aspect ratio.
📐 Click here or drag & drop an image (JPG, PNG, WebP)
Fast & private resizing inside your browser
Live preview of resized image:
What does the Image Resizer do and how to use it?
The Herramix Online Image Resizer lets you change the exact pixel width and height of any photo or graphic directly in your browser. It is ideal for preparing blog headers, e-commerce product photos, social media thumbnails, or profile avatars.
Once you select an image, its original dimensions are loaded and the aspect ratio lock is active by default. Typing a new width (for example, 1200 pixels) automatically updates the height so your photo never looks stretched. You can also click the 25%, 50%, 75%, or 100% buttons to scale proportionally in one tap.
Usage example
Scenario: You have a camera photo measuring 4000 × 3000 pixels and need to scale it down to 1000 pixels wide for an article.
Result: Enter 1000 in the Width field (or click 25%) to immediately generate a crisp 1000 × 750 pixel image ready to download.
Frequently Asked Questions
How do I resize an image without stretching or distorting it?
Leave the "Lock aspect ratio" box checked. Whenever you change either the width or height, the other dimension adjusts automatically to keep the original proportions.
Does enlarging an image reduce sharpness?
Scaling an image down preserves sharpness and reduces file size. Enlarging an image beyond its original pixel dimensions (upscaling) interpolates pixels and may look softer.
Are my images uploaded to an external server?
No. Resizing is performed 100% locally on your device using high-quality HTML5 Canvas interpolation.