MEDIA NO.014
AI Background Remover
AI cutouts in your browser — the model runs locally, photos never upload. Transparent PNG in seconds.
This tool runs entirely in your browser. Nothing is uploaded to any server.
What is this
什么是 AI 去背景
传统抠图靠手动描边，AI 去背景用神经网络（本工具采用轻量 U²-Net）自动识别画面主体并分离背景，输出透明底 PNG。区别在于：模型就跑在你的浏览器里——这不是营销话术，而是 WASM 推理的真实能力。
What is AI background removal
Instead of hand-tracing edges, a neural network (lightweight U²-Net here) detects the subject and separates it from the background, outputting a transparent PNG. The twist: the model runs inside your browser via WASM — no server round-trip at all.
如何使用
- 拖入照片，等待模型就绪（首次需下载约 5MB，之后秒开）。
- 推理自动开始，通常 1-3 秒完成。
- 对比前后效果，下载透明底 PNG。
FAQ
Where does the model come from — and my photos?
The ~5MB AI model is fetched from a CDN once and cached for offline use. Your photos stay in browser memory — never uploaded.
Which photos work best?
Single-subject photos with clear separation from the background — portraits and product shots. Crowds and fine hair may show small artifacts.
Does it work on phones?
Yes, on any modern mobile browser. The first model load takes a few seconds — keep the page open.
How is this different from online cutout services?
Most services upload your photo to a server, with privacy and quota costs. This one runs inference locally — free, no watermark, unlimited.