Website annotation for the app running on your machine

Annotate a live web UI during a private Shiproom review session. Reviewers need only a browser. Shiproom is currently free to use.

Annotation without making deployment the gate

Many website annotation tools assume a public URL, a proxy canvas, or a snippet on a hosted page. Shiproom starts from the HTTP app already running on loopback and creates a private review link for the session.

What reviewers can do

Reviewers open the invite link and leave pin, rectangle, arrow, freehand, and text annotations on the live interface. No Shiproom account or installation is required for invited reviewers.

Why annotate the live page rather than a screenshot

Marking up a screenshot in a design tool is easier to set up and loses the two things that matter most: where the mark sits in the interface, and what the interface was doing at the time.

An annotation on the running page can be resolved against the DOM, so the comment arrives attached to an element rather than to a pixel coordinate on an image that may already be stale. The same submission can carry the route, the viewport, the browser, and any requests that failed just before it was written.

The trade-off is honest: this only works while the app is running and the session is open. A screenshot markup survives forever in a shared drive. A review session does not, which is why the feedback — not the link — is the artefact Shiproom keeps.

What developers receive

Each submission can include the comment plus contextual evidence—screenshot, route, element metadata, viewport, browser context, and nearby failed requests when captured. Export Markdown or JSON, or fetch feedback through @shiproom/mcp.

Keep reading

Questions

Is Shiproom a website annotation tool?

Yes. Shiproom supports visual annotation on a live web interface shared through a private review link, with technical context attached for implementation.

Do I need to install a browser extension?

Reviewers do not. They use an ordinary browser. Builders use the Shiproom CLI on the machine running the app.

Is Shiproom free?

Yes. Shiproom is currently free to use, with early-access account limits.

Give your coding agent the screen context

Shiproom is currently free to use. Copy the prepared prompt so your coding agent can start the local app, open Shiproom, wait for the private review link, and return it to you.

Read the prompt it copies

Set up a Shiproom review link for this app so I can share it.

Do all of it yourself, end to end:

1. Start the app locally if it is not already running.
2. In the project folder, run: npx shiproom@latest live
3. If it asks which port, use the one the app is running on.
4. The first run opens a browser sign-in. Tell me exactly what
   to approve, wait for me, then carry on.
5. Wait until the session is live and the private review link
   has been printed. Do not guess the link.
6. Reply with that link on its own line, and confirm it opens
   in any browser with no account and no install.
7. Keep the session running until I tell you to stop it.
8. Do not change any of my code while the review is open.

If anything fails, tell me what happened in plain language and
what you need from me.

Prefer the terminal?

$npx shiproom@latest live

Open the console