Modern background removal uses deep learning (typically U-Net or SAM — Segment Anything Model) trained on millions of images. Our tool processes your image entirely in an in-browser inference pipeline — your photo never leaves your device. The AI detects the foreground subject, creates a precise alpha mask (transparency map), and outputs a PNG with a transparent background. Best results with: clear subject against contrasting background, good lighting, single dominant subject. Harder cases: hair/fur strands, transparent objects, complex scenery.