Google Backup Codes allow users to generate a list of one-time, 8-digit codes that can be printed and carried for account access without a phone. These codes can be generated and managed through the 2-Step Verification settings in a user's Google Account. Read the full guide at Google Account Help Google Help Sign in with backup codes - Android - Google Account Help
Yes. Use Authy for desktop, the Chrome extension “Authenticator”, or manually enter your secret key into a TOTP desktop app like “WinAuth” (Windows) or “OTP Client” (Mac). 6 digit verification code gmail portable
Devices like YubiKey or the Google Titan Key replace the 6-digit code entirely. Google Backup Codes allow users to generate a
Historically, Google encouraged SMS-based codes, which are portable only in the sense that you can move your SIM card. But SIM swapping attacks have made SMS notoriously insecure. Google now pushes for Google Prompts (which rely on device trust and are not portable in the TOTP sense) and passkeys (a passwordless standard). However, the six-digit TOTP code remains a widely supported, cross-platform, and indeed portable standard when implemented correctly with apps like Authy. Enable two-step verification
You may encounter websites or individuals offering to sell "Portable Gmail Codes" or "Bypass Software." These are scams.