Image Resizer
修改尺寸缩放头像尺寸图片大小
Freely scale width and height using the browser's high-quality resampling — for avatars, social platform specs and web image optimization, fully local.
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How to Use
- Pick a local image (files never leave your device)
- Adjust options and preview instantly
- Click download to save the processed image
- Images are processed inside your browser only — never uploaded to any server
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FAQ
Does upscaling get blurry?
Upscaling interpolates new pixels and softens as factors grow; downscaling is nearly lossless — shrink instead of enlarging where possible.
How to keep aspect ratio?
Enter width first then compute height from the original ratio shown, or use proportional math before filling both fields.
Is my image uploaded?
No, everything runs locally in your browser.