Image Resizer
Resize images to any dimension instantly. Maintain aspect ratio, adjust quality, and choose output format. 100% browser-based — your images never leave your device.
🔒 Privacy First: All resizing happens in your browser using the Canvas API. Your images never leave your device.
How to Resize Images
- Drop or select an image file
- Use presets or enter custom dimensions
- Choose output format and quality
- Click Resize and download your image
Tips for Resizing
Reducing size generally maintains quality well. Images can be scaled down significantly without visible quality loss.
Enlarging images can reduce quality as the browser must interpolate new pixels. For best results, avoid enlarging more than 150-200% of the original size.
Aspect ratio keeps your images proportional. Unlock it only if you specifically want to stretch or squash the image.
Frequently Asked Questions
How do I resize an image online?
Upload your image, enter the desired width and/or height, and click Resize. Your resized image will be ready to download instantly. All processing happens in your browser.
Is this image resizer free?
Yes, our image resizer is completely free with no limits on the number of images you can resize. No registration or watermarks.
Are my images uploaded to a server?
No, all processing happens entirely in your browser using the Canvas API. Your images never leave your device, ensuring complete privacy.
What image formats are supported?
Our resizer supports all common image formats including JPG/JPEG, PNG, WebP, and GIF. You can also choose the output format.
Can I maintain the aspect ratio when resizing?
Yes, there's an option to lock the aspect ratio. When enabled, changing the width will automatically adjust the height proportionally, and vice versa.
Will resizing affect image quality?
Enlarging images can reduce quality as the browser interpolates new pixels. Reducing size generally maintains quality. You can adjust the output quality for JPG and WebP formats.