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Background Remover

Remove image backgrounds instantly with AI. Auto-remove or manually refine. Image pixels stay on your device.

AI Powered No Upload Required Manual Refine PNG Download

Drop your image here

or click to browse files from your device

Supports JPG, PNG, WebP — Max 20 MB. Device-aware pixel limits also apply.

How it works

Three simple steps – AI does the heavy lifting in your browser.

1

Upload your image

Drag and drop or click to select a JPG, PNG, or WebP image from your device.

2

AI removes the background

Our AI model runs locally in your browser to precisely separate the subject from the background.

3

Refine & download

Preview the result, manually refine edges if needed, then export as PNG, WebP, or JPG.

Why choose ToolKnit Background Remover?

Private Image Processing — No Image Uploads

Image decoding, AI inference, mask editing, and export happen locally in your browser. ToolKnit does not upload your image file or its pixels. Standard page analytics may process ordinary site-usage data under our privacy policy.

AI-Powered Precision

Uses a neural network to detect people, animals, products, and other subjects while retaining fine edge details such as hair and fur.

Manual Refine Tools

Use the built-in brush and eraser to refine the mask, with adjustable brush size and edge softness for detailed corrections.

Flexible Image Export

Export at full image resolution as transparent PNG or WebP, or choose JPG with a solid background for smaller, widely compatible files.

Pro Tips

  • ● The AI resources are up to 109.5 MB and download on first use. After that, your browser reuses the local cache.
  • ● For best auto-removal results, use images with clear contrast between subject and background.
  • ● In manual mode, use a small brush with high softness for edge refinement around hair and fine details.
  • ● Brush restores the original image (adds to foreground). Eraser removes to background.
  • ● Use [ and ] keys to quickly resize the brush while editing.
FAQ

Frequently Asked Questions

Is this background remover really free?
Yes. ToolKnit does not charge for background removal, require an account, add a watermark, or impose a daily usage count. Each image must still meet the displayed 20 MB file-size limit and the device-aware pixel limit.

Are my images uploaded to a server?
No. Image decoding, AI inference, mask editing, and export happen locally in your browser. ToolKnit does not upload the image file or its pixels; standard page analytics may still process ordinary site-usage data under the privacy policy.

Why does the first use take longer?
The first run downloads up to 109.5 MB of pinned AI model and WebAssembly resources from ToolKnit. Your browser can reuse cached resources on later visits, although cache availability and offline behavior depend on browser storage settings.

Can I manually fix areas the AI missed?
Yes. After auto-removal, choose Refine Manually to restore foreground areas or erase remaining background with adjustable brush size and edge softness.