A UGC (User-Generated Content) portfolio is a digital showcase of your best authentic content (videos, photos, reviews) created for brands, acting as a resume to land paid brand deals by proving your skills, style, and ability to drive engagement without needing a large following. It's a curated collection, often a webpage, featuring your best work like TikToks, Reels, or product demos, demonstrating you can create relatable, trust-building content that converts to sales for brands.