B
Start editing
Feature

Refine Background Removal with Magic Brush

Fine-tune background removal with precision AI click tools. Perfect edges around hair, fur, and complex objects using AI segmentation technology.

100% FreeNo SignupNo WatermarksBrowser-Based
Upload an image

No signup required. No watermarks. No per-image usage limit.

What is Refine Background Removal with Magic Brush?

Magic Brush is a click-based refinement tool, not a paint stroke. After automatic removal, you place Keep points on subject pixels you want back and Erase points on leftover background. Each click runs on-device segmentation so hair, fur, glass, and holes can be recovered without uploading the photo.

How do I refine a cutout with Magic Brush?

Automatic removal is usually enough. Magic Brush is for the last 5%: a missing hair strand, a hole in a bike wheel, or a leftover wall pixel. Click, do not paint. Keep points restore subject; Erase points drop background. Accept small passes instead of dumping five conflicting clicks at once.

Click the problem edge

The model segments outward from the click. Zoom in, click the halo or gap, then Refine. The first click is slower because the encoder builds an image embedding; later clicks reuse it.

Keep vs Erase

If the shirt vanished, Keep-click the missing fabric. If wallpaper remains, Erase-click the wallpaper. Mixing both on the same strand fights itself.

Then export the right format

Download PNG for transparency. Place the cutout on white or a real slide before you ship — checkerboard hides color fringe.

Magic Brush is free. Use it on single images after bulk if a thumbnail looks wrong. Processing stays on your device.

Who is Refine Background Removal with Magic Brush for?

Hair and Fur Detail Recovery

Recover wispy hair strands, flyaways, and fur detail that automatic removal might miss, producing natural-looking cutouts.

Complex Object Edges

Clean up edges on objects with holes, lattice patterns, or intricate outlines like bicycles, fences, and lace fabrics.

Semi-Transparent Elements

Handle glass, smoke, veils, and other semi-transparent objects that require nuanced edge treatment beyond simple removal.

How do I use Refine Background Removal with Magic Brush?

1

Remove Background First

Start by using the automatic background removal. This gives you a baseline result to refine.

2

Activate Magic Brush

Enter Magic Brush mode and click on areas you want to keep or erase. The AI model segments the region around each click in real-time.

3

Accept or Reject Changes

Preview the refinement overlay, then accept to apply or reject to undo. Repeat as needed for cumulative refinements.

How do I get better results?

TipClick directly on the edge where the problem is - the AI segments outward from your click point for the most accurate result.
TipUse keep points on subject areas that were incorrectly removed, and erase points on background areas that remain.
TipWork iteratively: make small refinements and accept each one rather than trying to fix everything in a single pass.
TipZoom in on problem areas before clicking for more precise point placement on fine details like individual hair strands.

Frequently Asked Questions

What AI powers Magic Brush?
Magic Brush uses a lightweight AI segmentation model that runs directly in your browser via ONNX Runtime Web, providing fast, accurate segmentation from single click inputs.
Do I need to refine every image?
No. Most images get excellent results from automatic removal alone. Magic Brush is only needed for tricky cases like complex hair, fur, or semi-transparent objects.
How many click points can I add?
You can add as many keep and erase points as needed. Each click triggers a new segmentation prediction, and refinements are cumulative across multiple accept actions.
Does Magic Brush work on mobile devices?
Yes. Magic Brush supports touch input, so you can tap to place keep and erase points on phones and tablets.
Why does the first click take longer?
The first click triggers the model encoder to create an image embedding, which is cached for subsequent clicks. After the first click, refinements are nearly instant.
Can I undo a refinement?
Yes. You can reject a pending refinement before accepting it, and the editor also supports undo/redo history for accepted changes.

Related Resources

How to Remove Background from an ImageMake Background TransparentHair Detection HelpRough Edges Help

Ready to Get Started?

Remove backgrounds from your photos instantly - free, private, and unlimited.

Upload an image