How do I start Share Localhost Demo Links with clients?

Run instatunnel --port 3000 --subdomain client-demo, then use https://client-demo.instatunnel.my as the public endpoint for this workflow.

High-intent workflow

Share Localhost Demo Links with clients

Create stable HTTPS links for local features, QA walkthroughs, and stakeholder demos without full staging deployments.

Product, QA, and agency teams sharing preview links with external reviewers.

share localhost demo link

Protect demo links with password or basic auth before sharing externally.

Command

instatunnel --port 3000 --subdomain client-demo

Public endpoint example

https://client-demo.instatunnel.my

Public URL	https://client-demo.instatunnel.my
Local port	Use the port from your local app command.
Success check	Protect demo links with password or basic auth before sharing externally.

If the provider cannot reach the endpoint, confirm the local app is running and restart the tunnel with the same subdomain.

If events arrive but fail verification, compare the exact public URL and signature secret configured in the provider dashboard.

If retries create duplicates, store the provider event ID before performing side effects.

Start free, validate locally, and upgrade when you need MCP, higher limits, or advanced analytics.