Help Center
Everything you need to get the most out of NSS Background Remover.
Getting Started4 articles
Getting started
Everything you need to remove your first background in under two minutes.
Uploading images
Drag and drop, click to browse β all the ways to add images to the processing queue.
Supported image formats
Which formats you can upload and which you can export, and what to know about each.
Why AI tools download a model once
What the first-run download is, where models are stored, why big ones ask permission, and how to keep them on your device or clear them.
Core Tools9 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.
Upscaling images 2Γ and 4Γ
Choose the right upscale mode, understand the local model download, inspect seam diagnostics, and avoid halos on transparent cutouts.
Using the Video Editor
Colour grade, apply filters, add text overlays, trim clips, and export β without requiring background removal.
Removing backgrounds from glass and transparent products
How to use Glass / plastic mode to preserve partial alpha through clear materials β for jewellery, drinkware, bottles, and packaging.
Removing the background from a video
Choosing between the flicker-free People model and the Any-subject tiers, the 60-second limit, and exporting genuinely transparent WebM.
Making an animated GIF transparent
Frame-by-frame GIF background removal, why GIF edges are 1-bit by design, and when to export APNG instead.
Troubleshooting4 articles
Why does my export show black in Photoshop?
The premultiplied alpha problem explained β 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 β 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.
Features41 articles
Keyboard shortcuts
Complete reference of all keyboard shortcuts in the editor.
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.
Image filters
Apply 22 cinematic presets β 4K, Cinematic, Portrait, Drama, Golden Hour, Moonlight, Film Grain, Duotone, and more β with intensity control, then export or open in the editor.
Video filters
Apply cinematic presets frame-by-frame to a video and export as WebM β or continue editing in the Video Editor.
Colorizing black-and-white photos
Instant classical styles vs the DDColor AI model, the consent-gated download, and what colorization honestly can and cannot recover.
Manual image adjustments
Fine-tune brightness, contrast, saturation, and colour temperature in the editor β composable with filter presets.
Video upscaler
Upscale videos 2Γ or 4Γ using a fast single-pass ffmpeg Lanczos scaler β fully in-browser, no upload required. Queue multiple files and retry any that fail.
Video stabilizer
Smooth out shaky handheld or action-camera footage with frame-by-frame motion estimation β no upload, no third-party software.
Video metadata remover
Strip GPS, creation date, and encoder info from video files β re-encodes via canvas so no original metadata survives.
Video object remover
Remove, blur, or pixelate objects in a clip β click-to-select with AI, draw a box, or one-click licence-plate detection, tracked across frames with per-edit undo.
ICO creator
Build a multi-resolution .ico file from any image β 16Γ16 through 256Γ256 sizes embedded in one favicon-ready file.
Image canvas extender
Add transparent or coloured padding to any side of an image to hit an aspect ratio without cropping the subject.
Image resizer
Resize images to exact dimensions or by percentage with high-quality Lanczos downsampling and aspect-ratio locking.
Image compressor
Re-encode images to WebP, AVIF, or JPEG to hit a target file size β preview the quality trade-off before downloading.
Format converter
Convert between PNG, WebP, AVIF, JPEG, BMP, and TIFF β batch-drop multiple files, no upload, no quality loss when going lossless-to-lossless.
PNG optimizer
Losslessly re-encode PNG files to strip metadata and pick the smallest DEFLATE pass β typically 15β40 % size reduction with no pixel change.
Color extractor
Extract a usable palette from any image β hex / RGB / HSL swatches sorted by visual dominance, plus a single-pixel eyedropper.
Compare formats
Encode the same image as PNG, WebP, AVIF, and JPEG side-by-side β pick the right format for size and quality.
Check transparency
Inspect any imageβs alpha channel β see exactly which pixels are opaque, partial, or transparent before shipping a cutout.
Image metadata remover
Strip EXIF, GPS, and editing software fingerprints from photos before sharing β lossless, no upload.
Rotate & flip
Rotate images 90Β°, 180Β°, or by an arbitrary angle, and flip horizontally or vertically β lossless for 90Β° increments.
Grayscale
Convert images to black-and-white using perceptually-weighted luminance β preserves transparency, avoids muddy average-of-RGB results.
Color picker
Sample the exact colour at any pixel of an image β hex / RGB / HSL / alpha with a 10Γ magnifier for precision.
Add background
Place a transparent cutout on a solid colour, gradient, or custom image background β for JPEG-only destinations and presentation slides.
Video format converter
Convert between MP4 (H.264), WebM (VP9), and WebM (VP8) in your browser using WebCodecs β no upload, no third-party transcoder.
Video compressor
Reduce video file size with High / Medium / Low / Very Low quality presets via your browser's VP9 encoder β for upload limits and faster pages.
Video resizer
Resize a video to 4K, 1080p, 720p, 480p, or a custom resolution β aspect-ratio locked by default, entirely in-browser.
Video rotate
Fix sideways or upside-down videos with one click β bakes the rotation into the pixels, not just a metadata flag.
Video canvas extender
Add letterbox or pillarbox padding to change a video's aspect ratio without cropping β supports 1:1, 9:16, 16:9, 4:3, 21:9.
Video format comparison
Encode the same video as WebM VP9, WebM VP8, and MP4 H.264 side-by-side β pick the right format for size and quality.
Working with layers
Stack images, text, shapes, backgrounds, and 3D relief β each with their own opacity, blend mode, lock, and reorder. Drag-to-position, undo/redo, project round-trip.
3D preview & depth relief
Orbit the canvas in 3D, generate a depth-displaced bas-relief mesh, adjust lighting / material / background, record a 360Β° fly-through as WebM.
AI Face Restore
GFPGAN v1.4 after an optional 340 MB download, or an instant classical pipeline without one β one face per run, and what "restore" honestly means.
AI Deblur
A real NAFNet deconvolution after an optional 92 MB download, or a direction-aware unsharp mask instantly β why WebGPU decides the path, and which blur is recoverable at all.
AI Describe (alt text)
A captioning model writes a first-draft image description on your device. The one tool with no fallback β plus what it is weakest at and why the result is a draft.
Object Remove & Replace
Build and review a real object mask, choose bounded LaMa or the limited local fill, and place a local replacement as an export-safe editable layer.
Privacy Blur
Detect faces and licence plates only on request, correct every region, and apply blur or pixelation without turning an empty result into guessed boxes.
Smart Crop
Use local contrast scoring and pinned MediaPipe face assistance to suggest a crop, then adjust exact geometry and apply the image and mask together.
Auto Subtitles
Run the pinned local Whisper model with explicit consent, correct one typed caption track, export SRT/VTT/TXT, and understand the quality-preserving burn-in limits.
Auto Highlights
Review model-free motion, visual-prominence, scene, and speech-energy proposals before rendering an audio-aligned short reel.