图像压缩
本地压缩图像，无需上传。
图像与文件
裁剪图像
裁剪、旋转和翻转图像。
裁剪图像
由 UtilBrix 提供支持将图片拖到此处
从设备中选择文件
JPG, PNG, WebP · 每个文件 25 MB · 总计 50 MB · 最高 4000 万像素
详细方法和示例目前以英语提供。
Step-by-step instructions (English)
- Select an image and choose a free crop or aspect-ratio preset.
- Move the crop region with the available position controls or drag interaction; rotate or flip if needed.
- Inspect the selected area and download the cropped PNG.
公式与方法
Rotate and flip the decoded pixels, then extract the selected rectangle. Drag or adjust the position controls to choose the region. Aspect-ratio presets constrain its shape, while free mode allows separate crop width and height.
实际示例
Choose 1:1 to create a square crop, move the selection over your subject, and download the selected pixels as PNG.
When this tool is useful
Remove distracting edges, isolate a subject, or create a square composition from a wide image. Cropping is a framing operation; use resizing separately if you also need a specific output resolution.
Common mistakes and limitations
- A tight crop reduces the number of retained pixels; enlarging it later can reduce apparent sharpness.
- Check the selection after rotation or flipping because the composition changes.
Practical questions about this tool (English)
Does cropping delete the original file?
No. The tool produces a downloadable result. Keep the original file so you can choose a different composition later.
Is a 1:1 crop the same as a fixed 1,000-pixel square?
No. The ratio determines shape, not a fixed pixel size. A square selection can have many different dimensions; use Image Resizer for a specific size.