👻 创建透明图片（空白 PNG）Create Transparent Image
按指定宽高生成一张完全透明的 PNG（或 WebP）：适合做图层底稿、遮罩模板、透明贴纸底板。可设背景棋盘预览，全部在浏览器本地完成。Create a fully transparent PNG (or WebP) of a chosen width and height - handy as a layer base, mask template or blank sticker sheet. Optional checkerboard preview. Everything runs locally in your browser.
使用说明与常见问题How-to & FAQ
「创建透明图片（空白 PNG）」是什么？What is the Create Transparent Image tool?
按指定宽高生成一张完全透明的 PNG（或 WebP）：适合做图层底稿、遮罩模板、透明贴纸底板。可设背景棋盘预览，全部在浏览器本地完成。Create a fully transparent PNG (or WebP) of a chosen width and height - handy as a layer base, mask template or blank sticker sheet. Optional checkerboard preview. Everything runs locally in your browser.
如何使用「创建透明图片（空白 PNG）」？How do I use the Create Transparent Image tool?
在「创建透明图片（空白 PNG）」中，按需设置「宽度 (px)」、「高度 (px)」、「格式」等选项，然后点击「生成」、「下载」按钮即可。Enter the "Width (px)" and "Height (px)", choose PNG or WebP under "Format", and the transparent image is generated straight away (or click "Generate"). Click "Download" to save it; PNG allows up to 16,384 px per side and WebP up to 16,383 px.
透明图片有什么用？What is a transparent image for?
常用来做图层底板、遮罩、或在设计软件里占位；下载后用“图片添加背景”或“叠图”等工具继续加工。Often used as a layer base, a mask, or a placeholder in design apps; download it and continue with tools such as Add Image Background.
最大尺寸是多少？What is the size limit?
PNG 每边最多 16384 像素，WebP 每边最多 16383 像素（WebP 格式本身的上限，超过时会提示改用 PNG，不会悄悄缩小），总像素都不超过约 1 亿，避免浏览器内存不足。PNG allows up to 16,384 px per side and WebP up to 16,383 px per side (a limit of the WebP format; larger WebP sizes are refused with a message suggesting PNG, never silently shrunk), and about 100 megapixels in total, to avoid running out of browser memory.
有哪些选项可以调整？What options can I adjust?
「创建透明图片（空白 PNG）」的设置：「宽度 (px)」默认 512；「高度 (px)」默认 512；「格式」可选 PNG、WebP（默认 PNG）。改动任一选项后结果会按新设置重新生成。Settings in the Create Transparent Image — "Width (px)" default 512; "Height (px)" default 512; "Format": PNG, WebP (default PNG). Changing any option regenerates the result with the new setting.
「创建透明图片（空白 PNG）」免费吗？需要注册吗？Is the Create Transparent Image free? Do I need an account?
「创建透明图片（空白 PNG）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Create Transparent Image is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.