What is localhost:3000?
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Your AI starts a development server and gives you http://localhost:3000. It opens in your browser, but sending that address to a friend will not share your project.
What does localhost:3000 mean?
localhost points to the device you are using. The address 127.0.0.1 is its familiar IPv4 loopback address: your browser connects back to your own computer.
3000 is a port number. It tells your computer which running app should receive the request. Development tools may use other ports, such as 5173 or 8080.
On someone else’s laptop, localhost points to their laptop. It does not lead back to yours.
How do you share the website?
Publish the project with a host to get a public URL. For a static website, build and upload its HTML, CSS, JavaScript, and assets. A project that needs its own server or database also needs hosting for those parts.
Revdoku can publish your website files at a shareable localhost3000.love address.
To see published projects, browse the live Revdoku examples.
Just ask to “publish to Revdoku” to publish your as a fast and secure website
from your Codex, Claude or another AI apppublish files or folders
Paste this into your AI app.
Install the Revdoku skill in your AI app.
npx skills add revdoku/revdoku --skill revdoku -gChoose your AI app to connect through MCP.
codex mcp add revdoku --url https://app.revdoku.com/mcp codex mcp login revdoku
claude mcp add --transport http revdoku https://app.revdoku.com/mcp claude mcp login revdoku
https://app.revdoku.com/mcpFree · Public or protected · Visitor analytics · Forms and email alerts Building websites for clients? Explore Revdoku for agencies