Image Background Remover

Client-side image background removal built with Svelte, TypeScript, Vite, and Transformers.js. Images stay in the browser, inference runs inside a dedicated worker, and exports include both a transparent PNG cutout and a grayscale foreground mask.

Features

• Private in-browser processing with no server upload
• background-removal pipeline powered by @huggingface/transformers
• WebGPU-first execution with WASM fallback
• Worker-based model loading and inference to keep the UI responsive
• Upload, drag-and-drop, paste, and dynamically discovered sample-image flows
• PWA app shell with offline caching for the client bundle
• Theme persistence, compare slider, reset control, and export controls

Scripts

• npm run dev starts the Vite development server
• npm run check runs svelte-check and TypeScript validation
• npm run build creates a production build
• npm run preview serves the production build locally
• npm test starts the Vitest watcher
• npm run test:run executes the unit suite once

Notes

• Very large images are normalized and may be downscaled for inference safety before being composited back to their original export size.
• Model assets are fetched remotely by Transformers.js and are intentionally not runtime-cached by the app shell.
• Sample images are loaded dynamically from src/assets/samples, rendered as a single horizontally scrollable rail, and auto-scroll while idle.
• The unit tests cover the sample discovery helper, uploader rail behavior, export/reset controls, shared store helpers, and the app-level reset flow.