Ridimensionatore Immagini - DevToolBox

Resize images online for free. Adjust width, height, maintain aspect ratio. Support PNG, JPG, WebP, GIF. No upload needed - everything runs in your browser.

Drag & drop image or click to select

PNG, JPG, WebP, GIF supported

What is Image Resizer?

Image Resizer is a free online tool that lets you resize images to exact pixel dimensions. Simply upload your image, set the desired width and height, and download the resized result. All processing happens in your browser - your images are never uploaded to any server.

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How to Use

Upload an image by dragging and dropping or clicking to select
Set the desired width and height in pixels
Toggle aspect ratio lock to maintain proportions
Click Resize Image to process
Download the resized image

Use Cases

Resize images for social media posts
Create thumbnails for websites
Reduce image dimensions for email attachments
Prepare images for web optimization

FAQ

Is my image uploaded to a server?

No, all processing happens locally in your browser. Your images never leave your device.

What image formats are supported?

PNG, JPG, WebP, GIF, and most common image formats are supported.

Will resizing affect image quality?

Downscaling generally preserves quality well. Upscaling may result in some blurriness depending on the scale factor.