Fine-tune your GIF animations with the GIF Canvas Size Changer. Upload a GIF, adjust the settings to your preference, and download the modified version. All processing runs entirely in your browser — your files are never uploaded to any server.
将GIF拖放到此处或点击上传
支持动画和静态GIF文件
About
有时你需要在GIF周围留出更多空间而不缩放动画本身。这个工具改变画布尺寸——在任意边添加内距、将动画居中在更大的框架中，或裁去边缘多余的空白。在准备特定宽高比或固定容器大小的GIF时特别有用。
Features
画布扩展或缩小独立于动画本身
动画可以锚定在新画布的任意角落、边缘或中心
额外空间可填充纯色、渐变或透明
所有帧统一调整，动画保持完美对齐
Guide
上传你要调整画布的GIF
输入新的画布宽度和高度（像素）
选择动画的锚点位置——居中、左上角或任意边缘
选择添加空间的背景色（或透明）然后下载
Pro Tips
在将GIF嵌入网页前用这个工具添加统一边距
将画布设为正方形宽高比，适合社交媒体上裁剪为圆形的头像
透明画布扩展最适合GIF将放置在彩色背景上的情况
FAQ
Upload your GIF and configure the settings. The tool processes everything in your browser using JavaScript, so your files stay private and the result is ready to download instantly.
Yes. All processing happens locally in your browser. Your GIF files are never sent to any server, ensuring complete privacy.
There is no hard limit. Processing speed depends on your device — most modern browsers handle GIFs up to 30–50 MB without issues.
Related
在上方上传你的GIF即可开始。只需几秒钟，完全免费，文件始终留在你的浏览器中。