# nobg

> Fast, private, in-browser background removal and photo isolation powered by client-side neural networks (BiRefNet-Lite / WebGPU). Zero server uploads, unlimited full-resolution PNG exports, and 100% free with no account required.

## Key Capabilities
- **Zero Cloud Uploads**: Image processing executes directly in client browser memory via WebGPU and WebAssembly. No photos are sent to remote servers or external APIs.
- **Full Resolution Export**: Native camera-resolution export with lossless 32-bit transparent PNG alpha channels (never downscaled or watermarked).
- **Studio Editor**: Interactive erase and restore brushes, real-time zoom/pan lightbox, and darkroom inspection modes (Rubylith and B&W silhouette mask).
- **Backdrop Staging**: Stage subjects on transparent checkerboard, solid colors, softbox gradients, or custom uploaded backdrops.
- **Offline Capable**: Works without active internet connection once the lightweight model is cached in browser.

## Core URLs
- [Homepage & Demo](https://nobg.online/): Interactive before/after comparison slider, upload dropzone, and edge benchmarks.
- [Studio Application](https://nobg.online/app): Interactive darkroom canvas editor.
- [Privacy Policy](https://nobg.online/privacy): Complete architectural data-flow guarantee confirming zero server uploads and zero tracking cookies.
- [Pricing](https://nobg.online/pricing.md): Structured pricing and usage terms ($0/month, unlimited, no account).
- [Full LLM Specification](https://nobg.online/llms-full.txt): Deep technical architecture, supported formats, and browser support details.

## Job pages
Each page includes the same in-browser drop zone as the homepage, then copy for one search job. Localized under `/de/`, `/es/`, `/fr/`, `/ja/`, `/pt/`, `/zh/`.
- [Remove background without uploading](https://nobg.online/remove-background-without-uploading)
- [Free background remover, no signup](https://nobg.online/free-background-remover-no-signup)
- [Full-resolution background remover](https://nobg.online/full-resolution-background-remover)
- [remove.bg alternative](https://nobg.online/remove-bg-alternative)
- [Amazon product photo white background](https://nobg.online/amazon-product-photo-background)
- [Make background transparent](https://nobg.online/make-background-transparent)
- [Product photo background remover](https://nobg.online/product-photo-background-remover)
- [Remove background from hair](https://nobg.online/remove-background-from-hair)
- [HEIC / iPhone background remover](https://nobg.online/heic-background-remover)
- [Passport photo background](https://nobg.online/passport-photo-background)
- [Remove background from logo](https://nobg.online/remove-background-from-logo)
- [Canva background remover alternative](https://nobg.online/canva-background-remover-alternative)
- [Pet photo background remover](https://nobg.online/pet-photo-background-remover)

## Technical Architecture
- **Inference Engine**: Client-side Transformers.js with BiRefNet-Lite segmentation model.
- **Hardware Acceleration**: WebGPU shaders with WebAssembly (WASM SIMD) fallback.
- **Rendering Pipeline**: OffscreenCanvas in dedicated Web Worker threads, preventing UI lockup.
- **Supported Input Formats**: JPEG, PNG, WebP, GIF, HEIC.
- **Output Format**: Lossless 32-bit PNG with 8-bit alpha channel transparency.