Resize Image Online
Change image dimensions in pixels or scale by percentage, with aspect ratio lock — free and without installing anything.
为获得最佳性能，请一次上传不超过10 MB的文件。
也可以按 Ctrl+V 粘贴剪贴板中的图片
How to Resize an Image
- 1
Upload your image
Drop a file into the editor or pick one from your device. All popular formats are supported.
- 2
Set the new size
Enter the target width and height in pixels or use X/Y scale. Keep the aspect ratio locked to avoid distortion.
- 3
Apply and download
Apply the resize, preview the result and download your image in the format you prefer.
Frequently Asked Questions
- Can I resize an image without losing quality?
- Downscaling preserves quality very well. When upscaling, Imagise uses careful interpolation, but a very large enlargement may soften details — that is a limitation of any resizer.
- How do I keep the proportions of the photo?
- Enable the Lock Aspect Ratio option: changing the width will automatically adjust the height, and vice versa.
- Can I resize by percentage?
- Yes. Switch to X/Y scale and set the percentage — for example 50% to halve the image or 200% to double it.