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裁剪圖片為BMP
Trim your picture to BMP and keep only the part that matters. 直接在瀏覽器中執行——無需上傳、無需註冊、完全私密。
將圖片拖放到此處
或點擊選擇一個檔案
裁剪設定
在圖片上拖動以選擇裁剪區域。
裁剪完成
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This page crops to BMP. The selection is constrained to that shape, so you can concentrate on framing the subject instead of dragging corners until the numbers line up.
How it works
- Drop in your image — it is read locally, not uploaded.
- The crop box is already constrained to BMP.
- Drag the box over the part of the picture you want to keep.
- Download the cropped result at full resolution.
Good to know
Cropping removes pixels rather than scaling them, so what you keep stays exactly as sharp as it was in the original file.
Frequently asked questions
Does cropping to BMP reduce image quality?
No. Cropping discards the area outside your selection and leaves the remaining pixels untouched, so the kept region is bit-for-bit as sharp as the original.
Can I crop to BMP without losing the subject?
Position the crop box before downloading — the preview shows exactly what will remain. If the subject does not fit the shape, consider resizing with padding instead so nothing is lost.