文件与媒体
图像尺寸调整器
免费的图像尺寸调整器。将 PNG、JPG、WebP 或 GIF 调整到精确的像素尺寸，支持可选的宽高比锁定。完全在您的浏览器中运行。
Runs in your browser
Settings
Drop a file or click to browse
Resize to any pixel dimensions
Up to 25 MB · processed locally in your browser
Result
Upload and resize.
编辑注
Understanding · When pixels are added or thrown away.
本深度章节目前仅有英文版本。上方的转换工具支持您的语言;长篇说明文章尚未翻译。
常见问题
Quick answers.
›Will resizing reduce quality?
Downscaling looks great. Upscaling is limited by the source — we use a high-quality bicubic algorithm but can't invent detail that isn't there.
›Are my images uploaded?
No — resizing happens entirely in your browser.
›Can I resize multiple images at once?
Currently one at a time. Batch processing is on the roadmap.
›Will it preserve transparency?
Yes — PNG and WebP keep their alpha channel. JPG output is always opaque.
›Is the resizer free?
Yes — fully free, no signup, no size limits.
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