SMS Code Bridge

If you use an iPhone and a Windows PC, you already know the gap. On a Mac, a verification code arrives and Safari offers to fill it in one click. On Windows, you pick up your phone, read six digits, and type them. SMS Code Bridge closes that gap. When a verification code arrives on your iPhone, it appears in Chrome, ready to fill. HOW IT WORKS Nothing is installed on your phone. You add an Apple Shortcut — the standard, built-in Shortcuts app — and one automation that runs it when a message containing "code" arrives. The Shortcut pulls the digits out of the message on the phone and sends only those digits to a small relay, which pushes them to your browser. The extension finds the verification-code field on the page and offers to fill it. Setup is a QR code, a Shortcut import, and one automation you create yourself, because Apple does not allow automations to be distributed. It takes a couple of minutes, once. WHAT LEAVES YOUR PHONE The digits. That is all. The text of your messages never leaves the phone. The Shortcut extracts the code on-device and sends only the code and your pairing ID. If a message has no code in it, the Shortcut makes no network request at all — nothing is sent, and the relay never learns the message existed. The relay holds a code in memory for the length of one request, pushes it to your browser, and forgets it. Codes are never written to disk and never logged. There are no accounts, no email address, no analytics, and no third parties beyond your browser's own push service. The extension never writes a code to storage. A code lives in memory, expires after 60 seconds, and disappears if the browser restarts. Your pairing ID can be rotated from the popup at any time, which revokes the old one on the relay immediately. WHAT IT DOES NOT DO It is not end-to-end encrypted. Apple's Shortcuts app has no cryptographic actions, so there is no way to encrypt the code on the phone. Codes are protected by TLS in transit, but the relay can technically see them for the moment it holds them. We would rather say that plainly than bury it. iOS shows a notification every time an automation runs. Apple forces this and it cannot be turned off, so expect a banner on your phone with each incoming code. Whether an automation fires reliably while your iPhone is locked depends on your iOS version, and Apple documents no guarantee. If it does not fire on your phone, the extension cannot help — and this is the single biggest reason this might not work for you. The extension and the relay are open source. Everything above can be checked in the code rather than taken on faith.