Test on another device
Open a local app on phones, tablets, and remote browsers.
Open a public HTTPS URL when you need to exercise a local app outside your development machine.
Open the app on another device
Start the app, then open a tunnel:
tt http 5173Open the printed public URL on a phone, tablet, virtual machine, or remote browser.
Common checks you can run:
- Responsive layout and touch interaction
- Mobile browsers and WebViews
- Camera, microphone, and device APIs that require a secure origin
- Cross-browser differences without LAN setup
Avoid local-network setup
You do not need a local IP, mDNS hostname, or device trust configuration. The app must already listen on the chosen port.
When the app binds an interface other than localhost, pass --host:
tt http 3000 --host 127.0.0.1Protect unfinished work with --password before you share the URL broadly.