為WhatsApp調整圖片尺寸
Resize to the dimensions WhatsApp expects, so the platform does not crop your image for you. 直接在瀏覽器中執行——無需上傳、無需註冊、完全私密。
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WhatsApp expects roughly 800–1600px on the long edge. Uploading something else means the platform decides how to crop or squeeze your image, and it rarely chooses the part you cared about. Resize here first and you control the result.
How it works
- Add your photo — nothing is uploaded anywhere.
- The dimensions are preset for WhatsApp.
- Check the preview to confirm the important part of the image survives.
- Download and upload that file instead of the original.
Good to know
Why this matters: WhatsApp heavily compresses larger photos, so resizing first gives you control over the result.
Frequently asked questions
What image size does WhatsApp use?
Roughly 800–1600px on the long edge. Those numbers change occasionally, so if a platform update moves them, resize again to the new target.
Why does WhatsApp crop my photo?
Because the ratio you uploaded does not match what the layout expects, so it trims to fit. Resizing to the correct dimensions first removes the guesswork — WhatsApp heavily compresses larger photos, so resizing first gives you control over the result.