Claude, ChatGPT, and Gemini turn ideas into slides, reports, proposals, and microsites in HTML. Markup gets that work out of the chat window: drop the file, get a safe shareable link, and anyone can open it on any device.
Free during early access. No credit card.
Folders
Markup is a free hosting service for AI-generated HTML files. Upload an HTML file from Claude, ChatGPT, or Gemini and get a shareable link in seconds. Every file renders in an isolated sandbox.
Here's your board deck as a single HTML file:
board-deck.html · 1 fileLooks great. But it only opens here.
Opens on any device, no app needed
Decks, reports, resumes, microsites, dashboards. Every example below is one HTML file from an AI tool, hosted on Markup and shared with a link.
Examples of what you can build — each one a single HTML page, hosted on Markup.
AI writes code fast, but not always safely. Independent testing found AI-generated code failed to defend against the web's most common attack 86% of the time. So Markup never trusts a file. Each one renders fully isolated, with no path to your account, your data, or anyone else's files.
Source: Veracode GenAI Code Security Report, 2025.
No deploy, no repo, no command line. The same simple flow with Claude, ChatGPT, Gemini, or any tool that outputs HTML.
Describe what you want — a deck, a report, a one-pager — in Claude, ChatGPT, or Gemini.
Ask for it as a single HTML file and download it. That one file is everything you need.
Upload the file, get a shareable link in seconds, and send it to anyone. Done.
Upload the HTML file Claude gave you to Markup and you get a public link. Anyone can open it in a browser. They don't need a Claude account, a login, or any app.
On Markup, yes. Every file renders in an isolated sandbox, so code inside a file cannot reach your Markup account, your data, or any other file. This matters because AI-generated code often ships with security gaps.
Yes. Markup hosts single HTML files free during early access, with no credit card. Drop the file and get a shareable link in seconds.
Netlify and GitHub Pages are built for developers deploying projects from a repository or a build step. Markup is built for a single AI-generated HTML file: no repo, no build, no config. You upload one file and share a link in seconds, and every file is sandboxed.
No. If your AI can produce an HTML file, you can host it on Markup. There is nothing to configure and no command to run.
Anything that outputs HTML: Claude, ChatGPT, Gemini, and tools like Lovable. If you can download or copy an .html file, Markup can host it.
Yes. Markup is free during early access, with no credit card required.
Anyone with the link. Links are unguessable, and your file is not listed anywhere publicly unless you choose to share it.
Yes. Every Markup link opens in any browser on any device, whether that's a phone, tablet, or desktop.
Drop an HTML file, get a safe shareable link. Free during early access, no credit card.