How to Remove an Image Background Without Uploading It
A practical, step-by-step way to cut out a subject and export a transparent PNG entirely in your browser — no uploads, no waiting, no privacy risk.
一套实操方法，让你完全在浏览器里抠出主体、导出透明 PNG——不上传、不等待、没有隐私风险。
为什么要本地处理？
大多数去背景工具会把你的照片上传到服务器处理再回传，意味着你的图片副本会留在别人的机器上——做表情包无所谓，但涉及私人照片、客户稿或文件时就很冒险。在浏览器里处理，图片全程都在你自己的设备上。
第一步 — 打开本地去背景工具
打开「AI 去背景」工具，拖入图片即可。图片不会离开电脑，抠图在你的 CPU 上用纯算法完成，因此无需下载模型，网络慢也能用。
第二步 — 选模式
自动会取样图片四周的颜色来判断主背景，适合纯色或略复杂的背景。如果是纯色背景，选指定背景色再点一下背景，能得到最干净的抠图。
第三步 — 调容差与羽化
边缘发毛就把容差调低，只抠掉相似的颜色；把边缘羽化设为 1–2 像素，过渡更自然。羽化值越大，边界越柔和，能顺手盖掉小瑕疵。
第四步 — 在编辑器里补刀
遇到难处理的局部，把结果丢进「在线图片编辑器」再导出即可。因为全程本地，你可以无限次重来，没有任何成本。
适合什么场景
商品图、头像、需要透明底的 Logo，以及任何你不想让原图离开设备的图片。
A practical, step-by-step way to cut out a subject and export a transparent PNG entirely in your browser — no uploads, no waiting, no privacy risk.
Why do it locally?
Most background removers upload your photo to a server, process it, and send it back. That leaves a copy of your image on someone else's machine — fine for a meme, risky for personal photos, client work, or documents. Doing it in your browser keeps the file on your device the whole time.
Step 1 — Open the local remover
Open the AI Remove Background tool and drag in your image. Nothing leaves your computer; the cutout runs on your CPU with a pure algorithm, so there is no model download and it still works on a slow connection.
Step 2 — Pick a mode
Auto samples the colours around the edges to guess the dominant background — great for plain or slightly busy backdrops. For a solid-colour background, choose Pick Colour and click the background for the cleanest possible cut.
Step 3 — Tune tolerance and feather
If edges look rough, lower Tolerance so only similar colours are removed. Set Feather to 1–2 px for a softer, more natural edge. A higher feather blurs the boundary, which hides small mistakes.
Step 4 — Touch up in the editor
For tricky spots, open the result in the Image Editor and re-export. Because everything is local, you can iterate as many times as you like without any cost.
When this is the right tool
Use it for product shots, profile photos, logos on transparent backgrounds, and any image where you would rather the source never leave your device.