# ByeBG

> Free, privacy-first AI background remover powered by IS-Net running 100% on-device in the web browser. Zero server uploads, no signups, no watermarks, full HD downloads.

## What is ByeBG?

ByeBG is a free browser-based image background removal application. Unlike cloud-based tools that transmit private photos to remote servers, ByeBG executes neural network inference directly on the user's computer or smartphone using WebAssembly (WASM SIMD) and WebGPU via onnxruntime-web. Images never leave the device.

## Core Capabilities

- **100% Local Inference**: Zero photos are uploaded to any server or cloud bucket. Processing works even offline after the initial page load.
- **High-Definition Cutouts**: Generates transparent PNG, JPG, and WebP cutouts up to 4096px with edge refinement and color decontamination to eliminate halos.
- **Batch Processing**: Remove backgrounds from up to 10 photos simultaneously on the main tool and up to 50 photos in the Bulk Studio, with one-click ZIP batch export (runs client-side in browser memory).
- **Precision Brush Editor**: Built-in sub-pixel erase and restore brush with pan/zoom and undo/redo to refine flyaway hair and delicate edges.
- **Background Replacement**: Place cutouts over pure white (Amazon/eBay compliant), custom hex colors, soft Gaussian blur, or uploaded backdrop scenes.
- **No Cost, No Watermarks**: Completely free with full-resolution downloads and zero account requirements.

## Target Search Intents & Common Queries

- **Free background remover without sign up**: Instant access with no credentials or paywall.
- **Remove background without losing quality**: High-definition output up to 4096px with sub-pixel alpha matting.
- **Bulk background remover free**: Batch process up to 50 images with one-click ZIP download.
- **Amazon / eBay product photo white background**: One-click solid pure white (#FFFFFF) background replacement.
- **Transparent PNG maker**: Clean transparent cutouts for stickers, logos, signatures, and overlays.
- **Background eraser brush tool**: Manual sub-pixel touch-up and erase/restore brushes.
- **Remove.bg free alternative**: 100% free with unlimited full-HD downloads and on-device privacy.

## Page Directory

- [Background Remover](https://byebg.com/): Main tool. Drag and drop any photo for instant transparent cutout, format selection, and background customization.
- [Bulk Background Removal](https://byebg.com/bulk-removal): Batch processing studio for processing folders of photos with ZIP archive download.
- [Real Output Samples](https://byebg.com/samples): High-resolution before and after comparison gallery across portraits, products, and pets.
- [How Background Removal Works](https://byebg.com/how-it-works): Detailed architectural breakdown of on-device neural network segmentation.
- [Developer REST API](https://byebg.com/api-access): Developer documentation and sandbox keys for automated high-volume server API.
- [About ByeBG](https://byebg.com/about): Mission, creator background, and why ByeBG is free.
- [Contact & Support](https://byebg.com/contact): Support inquiries, feedback, and enterprise inquiries (admin@byebg.com).
- [Privacy Policy](https://byebg.com/privacy): Plain-English privacy guarantee detailing zero server storage.
- [Terms of Service](https://byebg.com/terms): Service terms and acceptable use.

## Languages Supported

Fully localized across 15 global languages with dedicated native URLs:
English (en), Spanish (es), Portuguese (pt), French (fr), German (de), Japanese (ja), Korean (ko), Italian (it), Indonesian (id), Turkish (tr), Vietnamese (vi), Traditional Chinese (zh-TW), Simplified Chinese (zh-CN), Polish (pl), Russian (ru).

## Technical Specifications

- **Neural Network Architecture**: IS-Net (Dichotomous Image Segmentation), Apache-2.0 licensed.
- **Runtime**: onnxruntime-web with WebGPU Execution Provider (1.5s - 4s inference) and multi-threaded WASM SIMD fallback (5s - 12s inference).
- **Model Checkpoint**: Quantized UINT8/FP32 ONNX model (~44MB), cached locally via browser Cache API (`unbg-model-v1`).
- **Memory Safety**: 4096px downscale cap prevents mobile OOM errors while preserving full visual fidelity.
- **License**: Free for personal, commercial, and e-commerce use.

## Comparison: ByeBG vs Cloud Background Removers

| Feature | ByeBG | remove.bg / PhotoRoom |
|---|---|---|
| Price | 100% Free | $0.20 - $1.99 per image / Subscription |
| Privacy | 100% On-device (0 uploads) | Photos uploaded to remote third-party servers |
| High-Resolution Export | Free full-resolution | 1 free preview (0.25 MP), paid for full HD |
| Watermark | None | None (paid) / Watermarked (free tier on some apps) |
| Batch Processing | Up to 50 images free with ZIP | Requires paid plan or API credits |
| Manual Touch-up Brushes | Included free in-browser | Often locked behind paywalls |

## Developer Integration

- Documentation: https://byebg.com/api-access#docs
- Full Specification: https://byebg.com/llms-full.txt
- Sitemap: https://byebg.com/sitemap.xml
- Support Email: admin@byebg.com