BrowserA browser built for the people making the page.

No more jumping between a browser, an IDE and a terminal — they are one app here. Check a layout at any device size, and let your coding agent drive the page itself: clicking, filling forms, reading what came back.

Part of Circuitry Studio — the same AI works in every surface, on the models you choose.

The browser tab pinned to iPhone Plus 428x926, a page re-laid-out inside the frame, the size badge in the address bar
View a layout at any device size.

Your coding agent drives it.

It clicks buttons, fills in forms and reviews what is on screen — in this tab, beside the code. No external browser to switch to. It works from your phone and tablet as well as the desk.

On a phone, localhost means your computer at home.

Connected through Circuit, the browser is tunnelled and proxied to your device — the same page you would see sitting at the machine. Or develop on Cloud Circuit, a hosted Linux machine, and it works the same way.

A page the agent built, open in the browser on a phone

A page served off the machine at home, open on the phone.

A fully integrated development IDE, on all your devices.

Free for non-commercial use. Reaching your own machine from a phone or tablet needs a paid plan.

The other surfaces in the studio