Picking a username is frustrating: random generators give forgettable word mashups, and good ideas are often invalid on the platform you want. Nymic builds usernames around your own word or idea, ranks the best first, and only shows results that fit your platform's rules (Instagram, TikTok, Roblox, X and more). Choose from 9 styles and an exact length (4-40 characters), save favorites, refine with More Like This, and verify on the platform. Free, no signup, runs in your browser.