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调整尺寸

按指定像素宽高精确缩放图片。支持锁定宽高比或自由拉伸。支持JPG、PNG、WebP和GIF。免上传即时下载。

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调整尺寸

在浏览器中精准调整图片像素尺寸。无论您需要适配网站头图、应用图标还是印刷尺寸，最高支持50MB大图本地流畅处理。

🔐 100% Private — Client-Side Execution

All processing happens inside your browser using WebAssembly and HTML5 Canvas. Zero file uploads, zero server tracking. Compliant with LGPD & GDPR.

常见问题解答

Can I resize an image to exact pixel dimensions?
Yes. Enter the exact width and height in the input fields. Toggle Lock Aspect Ratio to maintain proportions, or disable it to stretch freely to any dimensions.
What is the maximum resolution I can resize to?
The browser Canvas API can handle very large images. Resizing to 8000x8000px or above is supported on most modern devices, though it may take a few seconds for very large outputs.
Does resizing increase image file size?
Upscaling can increase file size significantly because you are creating more pixels. For smaller files after upscaling, run the result through our Compress Image tool.
Can I resize an image by percentage instead of pixels?
Yes. Switch from pixels to percentage mode using the toggle. Enter 50 to reduce to half size, or 200 to double the dimensions.
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