Five free browser tools for Claude, no signup. Prompt Doctor scores your prompt 0-100 and rewrites it. Workflow Builder chains prompts into one workflow Claude runs top to bottom. Cost Calculator shows what Claude really costs you and how to save. Skill Builder builds a custom skill in 60s. Plus a "what kind of Claude-aholic are you?" quiz with a shareable card. Built by a Claude obsessive, for Claude obsessives - everything runs in your browser.
