Help Center
Everything you need to get the most out of NSS Background Remover.
Getting Started3 articles
Core Tools4 articles
Using the brush tool
Erase and restore areas of your cutout with a precision brush with adjustable size, hardness, and opacity.
Edge refinement
Feather, smooth, expand, and decontaminate edges to get natural-looking cutouts.
Replacing the background
Add a solid colour, gradient, or image behind your cutout in the editor.
Exporting with transparency
How to export a PNG, WebP, or AVIF with true alpha channel transparency.
Troubleshooting4 articles
Why does my export show black in Photoshop?
The premultiplied alpha problem explained — and why NSS exports a real checkerboard instead.
Why does my image have a halo or colour fringe?
Light or dark fringing around your subject — causes and how to fix it.
Why are the edges jagged or pixelated?
Why edges look rough and how feathering and the brush tool smooth them out.
General troubleshooting
Common issues and solutions: slow inference, black exports, missing features, browser errors.
Features4 articles
Keyboard shortcuts
Complete reference of all keyboard shortcuts in the editor.
Batch processing
Process up to 20 images at once and download all results as a ZIP file.
Working offline
How the app caches itself and the AI models so you can work without internet.
Installing as an app
Install NSS Background Remover on your desktop or home screen for quick access.