@loadmastercapital/sticker

Remove image backgrounds entirely in the browser. No API key. No server. No uploads. Powered by RMBG-1.4 running via ONNX Runtime Web.

Install

npm install @loadmastercapital/sticker

Requires a GitHub Packages token for first install — see Authenticating to GitHub Packages.

Usage

import { removeBackground } from '@loadmastercapital/sticker'

// From a file input
const input = document.querySelector('input[type=file]')
const [file] = input.files
const cutout = await removeBackground(file)
// → transparent PNG Blob

// Download it
const url = URL.createObjectURL(cutout)
const a = document.createElement('a')
a.href = url; a.download = 'sticker.png'; a.click()

With progress callbacks

const cutout = await removeBackground(file, {
  onProgress: (percent) => console.log(`Downloading model: ${percent}%`),
  onStatus: (status) => console.log(status), // 'loading_model' | 'processing'
})

How it works

1. First call: downloads the RMBG-1.4 model (~44 MB) from Hugging Face and caches it in the browser
2. Subsequent calls: model loads from cache instantly
3. Inference runs in a Web Worker — UI stays responsive
4. WASM runtime files load from CDN (jsdelivr) — no build configuration needed

Browser support

Requires a browser with Web Workers, OffscreenCanvas, and WebAssembly support. All modern browsers qualify. WebGL acceleration is used automatically when available.

Notes

• Model license: RMBG-1.4 is licensed under Bria's non-commercial license. For commercial use, contact Bria or substitute an MIT-licensed model.
• Runtime code license: MIT — see LICENSE

Full sticker maker app

The web app lives at / — it adds outline effects, backgrounds, text overlays, animated GIF export, WhatsApp sticker export, and more on top of this package.