Erase.bg is a fast, free AI background remover in 2026 that instantly erases backgrounds from HD/4K images (up to 10,000x10,000 px) with precise edge detection for hair, fur & complex objects. Upload photos or short videos (up to 30s), get transparent PNGs or edit with new backgrounds/colors. Free for personal use (3 credits on signup), pay-as-you-go Pro from ~$5/10 credits for unlimited HD downloads, batch processing & API. Ideal for e-commerce product shots, social media, designers, photographers—clean results, no skills needed, mobile apps available.