Use "Swap" to 快速 toggle between landscape and portrait orientations?

Use "Swap" to 快速 toggle between landscape and portrait orientations.

The CSS snippet copies a ready-to-paste aspect-ratio property 用于你的 stylesheets?

The CSS snippet copies a ready-to-paste aspect-ratio property 用于你的 stylesheets.

社交媒体预设会给出每个平台推荐的精确像素尺寸。

Calculate and convert 宽高比s

Calculate and convert 宽高比s for images, videos, and screens. All calculations run instantly 在浏览器中.

1Enter a width and height to see the corresponding 宽高比.
2点击"Lock ratio"以constrain proportions — change one dimension and the other auto-adjusts。
3浏览常见比例（16:9、4:3、1:1、21:9）或平台预设（Instagram、YouTube、X/Twitter）。
4Use 设备 presets to check dimensions for popular phones, tablets, and monitors.
5点击"Copy dimensions" or "Copy ratio"以paste values into your design tool。

免费：all ratios and presets。Starter+：CSS snippet export, device presets。