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Feature comparison
Codex Sites deploys AI-generated pages as production websites. Host HTML File creates fast preview links for the review stage that comes before a deployment decision. Both tools fit different moments in the same AI development workflow.
How Host HTML File and Codex Sites compare across key capabilities.
| Feature | Host HTML File | Codex Sites |
|---|---|---|
| Primary use case | Fast preview links for review | Hosted website deployment |
| Git required | No | Integrated with Codex workflow |
| Single HTML file | Direct upload, instant link | Via Codex project structure |
| ZIP project with assets | Yes, relative paths preserved | Project-based deployment |
| Custom domain | Not the focus | Supported |
| Persistent hosted URL | Preview links, not production URLs | Yes |
| Draft / noindex links | Yes, review before indexing | Production-oriented |
| AI prototype workflows | Designed for quick review loops | Designed for deployed output |
| Reviewer access | Share a URL, no login required | Standard browser URL |
| Site lifecycle management | Not the scope | Yes |
| Best moment to use | Before deployment decision | After content is approved |
| Setup overhead | Upload and go | Integrated Codex workflow |
Codex Sites is part of OpenAI's Codex ecosystem. It takes AI-generated static output and publishes it as a hosted web property with a persistent URL. The workflow is designed for teams that want to go from prompt to deployed site without leaving the Codex environment. Codex Sites is appropriate when the goal is a real website that stays up, accepts a custom domain, and is managed over time.
Host HTML File handles a narrower, earlier part of the same workflow: creating a browser-accessible preview link from a static HTML file or ZIP project. It is optimized for the review stage, not the production deployment stage. Upload a file or ZIP with assets, get a preview URL, and share it with anyone who needs to click through the page before decisions are made. Host HTML File does not require Git, a repository, or a project configuration — just a file and a moment to share it.
A practical workflow combines both. When Codex generates a static page, upload the output to Host HTML File for a lightweight review round with your client, product manager, or QA team. Once the layout, content, and interactions are approved, move the project into Codex Sites or another production host for the final deployment. This way, Host HTML File absorbs the iteration cost and Codex Sites only handles final output.
Some projects benefit from just one of the two tools. If the page is a throwaway prototype — a concept test, a design experiment, or a pitch mockup — Host HTML File is all you need: publish, review, discard. If the page is going straight to production with no review round, Codex Sites covers the full path. The overlap is real, but the primary use case for each tool is different enough that the choice is usually clear once you know whether the page needs to stay online.
FAQ
Codex Sites is designed for deploying AI-generated websites as persistent, production-ready hosted properties. Host HTML File is built for the earlier review moment: turning a static HTML file or ZIP project into a fast preview link for client feedback, QA, and stakeholder review before a production deployment decision is made.
No. Host HTML File is designed for no-Git publishing. You upload an HTML file or ZIP project directly from your browser or via the CLI, and Host HTML File creates the preview link immediately without a repository, branch, or commit.
Yes. A common workflow is to upload the static output from Codex to Host HTML File for stakeholder review, then move the approved project into Codex Sites or another production host when the design and content are final.
Yes. Host HTML File extracts ZIP projects and preserves relative asset paths so CSS stylesheets, JavaScript files, images, and fonts all resolve correctly in the browser preview.
No. The two tools serve different workflow stages. Host HTML File handles the draft-review phase with lightweight preview links. Codex Sites handles production deployment with persistent hosting, custom domains, and site lifecycle management. Many teams use both.
Host HTML File focuses on fast preview links rather than custom domain hosting. The preview URL is generated automatically. For custom domain hosting, a production platform like Codex Sites, Netlify, or Vercel is more appropriate.
Upload a single HTML file or a ZIP project from Codex and get a shareable preview URL in seconds — no Git, no deployment setup, no wait.