图片裁剪
在本设备处理 · 无需上传精确裁剪和调整图片大小。
如何裁剪图片
- 拖放或选择要裁剪的图片文件。
- 在图片上拖动鼠标选择裁剪区域。
- 点击「裁剪」按钮并下载结果。
Cropping keeps the part of a photo you want and removes unwanted margins or background. With aspect-ratio presets (1:1, 16:9, 9:16), use-case presets for Instagram and YouTube, a circle-crop mode, and exact pixel sizing, you can fit profile pictures, thumbnails, and social images in one place. It runs in your browser with no uploads, and your original is kept intact.
Aspect-ratio and use-case presets
Lock the crop to a ratio like square (1:1), 16:9, or 9:16 with one click. Use-case presets are ready too — Instagram feed (1:1, 4:5), Stories/Reels (9:16), YouTube thumbnail (16:9), and passport photos — so your image isn't awkwardly re-cropped after you upload. Once a ratio is locked, dragging a corner keeps that ratio.
Circle crop (round profile pictures)
Choose 'Circle' to crop the image into a circle and save it as a transparent PNG. Perfect for profile pictures, avatars, and round logos — no separate editor needed.
Crop to an exact pixel size
Type an exact width and height in pixels to crop to that precise size — handy when you need something like 1080×1080 or 1920×1080. Rough it in by dragging, then fine-tune with the numbers.
Compress after you crop
Cropping already reduces the file, but for the web run it through the image compressor for faster loading. Your original stays untouched — only the cropped result is downloaded. See the circle crop guide, the social image size guide, and the crop image guide for more.
常见问题
- 可以精确裁剪到指定尺寸吗？
- 可以，选择区域的宽度和高度（像素）会实时显示，方便精确调整。
- 原始图片会被修改吗？
- 不会。原图保持不变，裁剪后的新图片会单独下载。
- 支持哪些图片格式？
- 支持JPG、PNG、WebP、GIF等浏览器支持的所有图片格式。
- Can I crop to a fixed ratio like square or 16:9?
- Yes. Tap an aspect-ratio preset (1:1, 4:3, 3:4, 16:9, 9:16) or a use-case preset like Instagram or YouTube to lock that ratio.
- What happens to the background with a circle crop?
- Everything outside the circle becomes transparent and is saved as a PNG, so it looks round on any background.
- Can I crop to an exact pixel size?
- Yes. Enter the width and height under 'Custom size' to crop to those exact pixels.
- Does cropping change the original?
- No. The original is left as-is and only the cropped image is downloaded.