What Codex Sites is built for
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.
What HTMLShare is built for
HTMLShare 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. HTMLShare does not require Git, a repository, or a project configuration — just a file and a moment to share it.
Using both tools in sequence
A practical workflow combines both. When Codex generates a static page, upload the output to HTMLShare 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, HTMLShare absorbs the iteration cost and Codex Sites only handles final output.
When you only need one
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 — HTMLShare 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.