How do I share an interactive thing I made with Claude or AI?

Quick answer: Save the AI's code as a single HTML file, paste it at arcadelab.ai/publish, and you get a public URL anyone can play with. No signup, no build tools, no account. Works for games, visualizations, simulations, or any single-file interactive HTML. You asked an AI to build you something - a game, a physics, an interactive chart, whatever it is - and it gave you a wall of HTML, JavaScript, and CSS. Now you want a friend, a kid, a coworker, or the internet to play with it. This is how.