Preview your running app in Claude Code on desktop

Claude Code on desktop can now start dev servers and preview your running app directly in the interface. Claude sees the UI, reads console logs, catches errors, and keeps iterating — no more switching to a browser to check your work. You can also click elements in the preview to give Claude direct feedback. Read the announcement: https://claude.com/blog/preview-review-and-merge-with-claude-code

Mar 18, 20261mWatch on YouTube ↗

WHAT IT’S REALLY ABOUT

Preview a running app in Claude Code on desktop quickly

The video’s metadata indicates a walkthrough focused on previewing a running app within Claude Code on desktop.
No spoken content is present in the provided transcript, so specific steps, tools, and limitations cannot be extracted.
Given the title, the likely emphasis is on connecting a local dev server (or running process) to an in-editor preview pane.
Without transcript details, any concrete workflow (ports, commands, UI clicks) would be speculative and should be confirmed with the actual audio/text.
Providing a complete transcript or chapters would enable a precise, step-by-step “At a Glance” summary tied to the creator’s instructions.

IDEAS WORTH REMEMBERING

5 ideas

The transcript provided contains no actionable instructions.

Because the transcript only shows an empty speaker line, there are no described steps, settings, or commands to summarize reliably.

The title suggests a live preview workflow tied to an already-running app process.

“Preview your running app” typically implies you start the app (e.g., dev server) and then attach or open it in a preview surface within the desktop tool.

Accurate guidance depends on specifics like framework, port, and Claude Code UI elements.

Different stacks (React/Vite, Next.js, Flask, etc.) and desktop app versions change the exact steps (e.g., which port to open, whether HTTPS is required, and where preview controls live).

Ports and localhost accessibility are usually the key integration point for previews.

Most desktop previews render a URL (often http://localhost:PORT) and may require allowing network access, selecting the correct port, or handling CORS/auth flows.

To create a faithful overview, the full transcript (or a screenshot of the on-screen steps) is necessary.

With the missing content restored, the summary can capture the exact clicks, commands, and troubleshooting tips the video demonstrates.

Claude Code desktop previewRunning local dev serverApp preview pane/webviewPort forwarding / localhost accessDeveloper workflow integrationDebugging during preview

High quality AI-generated summary created from speaker-labeled transcript.

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