On-device AI · No uploads · No accounts

Remove Image Backgrounds with AI — Free and Privately

Remove image backgrounds automatically using AI directly inside your browser. Create transparent PNG images, edit backgrounds and download your results — without uploading your photographs to any server.

Remove Background See How It Works
  • Browser-based AI processing
  • Private local image processing
  • Transparent image downloads

Upload an image to begin

Drag a file into the panel below, browse your device, paste from the clipboard, or capture a photo directly with your camera where supported. Processing happens locally — nothing is uploaded to a server.

Drop your image here

PNG · JPG · JPEG · WEBP — up to 20 MB

Your image is processed on your device and never uploaded.

Everything you need, without uploading anything

BG Remover is a complete background-removal workspace. It combines a trained segmentation model, a manual refinement editor, and multi-format export — all inside a single static page.

  • Automatic AI segmentation

    A custom-trained ONNX model identifies the main subject and separates it from the background in a single pass. No manual tracing required.

  • Runs 100% on your device

    Every pixel stays on your machine. There is no server, no upload, no account and no tracking. The AI model is downloaded once and cached.

  • Original resolution preserved

    The AI processes a normalised tensor, but the alpha mask is resampled back to the original image dimensions, so your export keeps every pixel.

  • Manual eraser and restore brush

    Fine-tune edges with soft brushes, hardness control, and pressure support for pen and touch input. Undo and redo are unlimited within your session.

  • Background replacement

    Keep transparency, choose a solid colour, apply a gradient, or drop in a custom background image — with fit, fill and positioning controls.

  • PNG, WebP and JPEG export

    Export transparency-preserving PNG or WebP, or flatten onto a chosen background as JPEG. Choose Standard, High or Maximum quality.

  • WebGPU and WASM acceleration

    BG Remover detects WebGPU support and switches automatically, falling back to WebAssembly when hardware acceleration is not available.

  • Installable, offline-ready PWA

    Install BG Remover to your home screen. After the first successful load, the AI model and application shell are cached so subsequent runs work offline.

How BG Remover works

BG Remover is not a wrapper around a cloud API. Every step below — decoding, inference, refinement and export — happens inside your browser.

  1. Image loading and validation

    When you select an image, the browser decodes it into an ImageBitmap and validates format, dimensions and file size. Nothing has left your device at this point.

  2. Pre-processing

    The image is resized to the model input size (typically 512×512) and normalised into an RGB float tensor. The mean and standard deviation used here are documented in js/ai/model-config.js.

  3. ONNX inference

    ONNX Runtime Web executes the trained segmentation model using WebGPU when available, or WebAssembly otherwise. The model returns a foreground probability mask.

  4. Mask refinement

    The mask is upsampled to original resolution with bilinear filtering, edge anti-aliasing is applied, and small noise components are removed before the alpha channel is composited.

  5. Transparent output

    The alpha mask is applied to the original image, producing a transparent PNG in memory. You can then refine edges, swap the background, or download immediately.

Try it now Read the technical overview

Supported formats

BG Remover works with the most common photographic formats. Choose a format based on how you plan to use the result.

PNG

Lossless, supports full transparency. Best choice when you need a clean transparent cut-out for design work.

Input · Output

JPG / JPEG

Excellent for photographs and smaller file sizes. Does not support transparency, so the background must be replaced before export.

Input · Output

WebP

Modern format that supports both transparency and lossy compression. Great balance between quality and file size for the web.

Input · Output

Private by design

Many online background removers upload your photos to a server. BG Remover takes the opposite approach.

  • No uploads. Your image never leaves your device. The AI model is downloaded to your browser and executed locally.
  • No accounts. You don't need to sign up, log in, or provide an email address.
  • No tracking by default. No analytics scripts, tracking pixels, or advertising networks are loaded on this site.
  • No hidden storage. Processed results are not saved by us anywhere — anything that persists is saved locally in your browser and can be cleared in one click.

Read the full privacy policy

Illustration showing an image staying on a device while other services upload theirs

A real on-device AI model

BG Remover ships with a custom-trained image-segmentation model exported to ONNX. There is no cloud API involved — the model and the runtime are served as static files, and inference happens inside ONNX Runtime Web.

The model is a compact encoder-decoder network trained to predict a foreground probability mask from a normalised RGB image. Because inference is local, the only cost to run it is your device's time.

  • Model format: ONNX
  • Runtime: ONNX Runtime Web (WebGPU + WASM)
  • Input: 1×3×512×512 RGB float tensor
  • Output: 1×1×512×512 foreground probability map

More about the AI technology

Diagram showing an image entering an ONNX model inside a browser and producing a transparency mask

Frequently asked questions

Is BG Remover really free?

Yes. BG Remover does not charge, does not require an account, and does not call a paid API. Everything you see — the model, the runtime, the editor — is served as static files. Your only cost is the bandwidth to download the model the first time.

Are my images uploaded to a server?

No. The image is decoded, resized, normalised, passed through the ONNX model, and exported — all inside the browser. There is no upload step anywhere in the pipeline.

Which formats are supported?

You can upload PNG, JPG, JPEG and WEBP. You can export PNG with transparency, WEBP, or JPEG flattened onto a background.

Does it work offline?

After your first successful load, the service worker caches the application shell and the model. If your browser supports the Cache API and IndexedDB, subsequent uses of BG Remover can run completely offline.

Will my full-resolution photo be preserved?

Yes. The AI model runs at a fixed input size, but the resulting mask is upsampled and applied to the original image. The exported file keeps the source's resolution unless you choose a smaller preset.

Why does the first run download a file?

The AI model is a trained neural network. It must be downloaded once so that your browser can run it. After the first download, the model is cached and reused on subsequent visits.

What if my device doesn't support WebGPU?

BG Remover automatically falls back to WebAssembly, which works on every modern browser. WebGPU is faster when available, but it is not required.

Ready to remove a background?

No sign-up. No uploads. Just drop an image and download a transparent PNG.

Remove Background Learn more