A web authenticator that runs entirely in your browser — no app, no account, no phone number.
AuthBro generates the same 6-digit TOTP codes as Google Authenticator or Authy, but you don't have to install anything. Scan a QR code, get your codes, and back them up whenever you switch devices. Your keys never leave your browser.
Your secret keys are generated and encrypted entirely in your browser — never uploaded, never seen by us. There's no server-side database of your 2FA secrets, because we never receive them.
Open DevTools F12 → Network tab, then add or view an account. Watch the requests — none of them will ever contain a 2FA secret.
Full verification walkthroughMost authenticator apps make it hard to leave. Your codes get tied to one phone, one cloud account, or a proprietary sync system you can't export from. AuthBro works differently: it's a browser-based TOTP generator, so your 2FA vault isn't locked to any single device, app store, or phone number.
Download your whole vault as a password-protected, AES-256 encrypted file, then load it into AuthBro on any laptop, desktop, or phone browser. No missing accounts, no re-scanning a dozen QR codes from scratch.
Getting a new laptop or reinstalling your OS shouldn't mean losing your 2FA codes. Move your accounts between Windows, Mac, and Linux in a couple of minutes, with no SMS fallback and no signup required.
Scan a setup QR code with your camera, upload a screenshot of one, or paste the Base32 secret key by hand — AuthBro reads the same otpauth:// format every authenticator app uses, so it works with any of the 1,000+ services that support 2FA today.
TOTP codes are just math — your secret key plus the current time. Once AuthBro is loaded, it doesn't need a connection to generate them, so a cloud outage or a dead Wi-Fi signal won't lock you out of your accounts.
Built to be fast, private, and usable on whatever device you're already on.
Built on RFC 6238, the same open standard behind Google Authenticator. Your codes refresh every 30 seconds and work with Google, Microsoft, GitHub, AWS, and pretty much any service that supports 2FA.
Point your camera at a setup QR code, or just upload a screenshot if you took one earlier. Either way, AuthBro pulls out the secret key automatically — no typing required.
Your secret keys are encrypted and stored locally in your browser. They never touch our servers, so there's nothing for us to leak, sell, or lose in a breach.
Export a password-protected backup any time, store it wherever you trust, and restore it on a new device in seconds if you ever need to.
Search or filter your accounts by category, then copy a code with one click. A countdown ring shows you exactly how long it's good for.
Once the page has loaded, generating codes doesn't need a network connection at all — handy on a flight, in a basement server room, or anywhere your Wi-Fi isn't cooperating.
Three steps, all of them happening in your browser — nothing is sent anywhere else.
Scan the QR code the service shows you, or paste in the Base32 secret key directly. AuthBro reads the standard otpauth:// format in your browser's own memory — the key never gets sent anywhere.
Every 30 seconds, AuthBro combines your secret key with the current time to produce a fresh 6-digit code — the same HMAC-SHA1 math (RFC 6238) that every TOTP authenticator uses. No internet connection needed for this part.
Set a master password and AuthBro encrypts your whole vault with AES-256-GCM before storing it. Export that backup any time and you can restore every account on a new device in one go.
Not all two-factor authentication is equally safe. Here's where a client-side authenticator actually holds up better than cloud-synced apps or a text message.
| Security & Feature Attribute | AuthBro (Client Vault) | Cloud Sync Authenticator Apps | SMS / Phone Text Verification |
|---|---|---|---|
Server Data Breach Protection | 100% Safe (No Keys on Server) | Vulnerable to Cloud Server Leaks | Unencrypted Telecom Networks |
SIM-Swapping Attack Immunity | 100% Immune (Client Hardware Isolated) | Vulnerable via SMS Account Recovery | Highly Vulnerable (Direct Target) |
Air-Gapped Offline Operation | Full Offline Support | Requires Internet for Sync | Requires Cellular Connection |
Encrypted Vault Backup Export | AES-256 JSON Portable File | Proprietary Account Lock-in | No Backup Support |
Open Standard Compliance | RFC 6238 & RFC 4226 Compliant | Mixed Proprietary Formats | Non-Standard SMS Protocol |
Any service that supports standard TOTP 2FA works with AuthBro — that covers dev platforms, cloud services, social networks, and crypto exchanges alike.
Explore tutorials on 2FA security best practices, TOTP algorithms, and digital account protection.
What Is Two-Factor Authentication (2FA)? A Complete Beginner's GuideTwo-factor authentication (2FA) adds a second, independent layer of proof beyond your password. This guide explains how 2FA works, the different types of authentication factors, and how to turn it on without installing a dedicated app.
Phishing and credential-harvesting attacks are built entirely around stealing a password. Here's exactly how TOTP-based 2FA breaks that attack, why SMS codes don't offer the same protection, and the habits that keep a 2FA vault genuinely safe.
A technical, step-by-step breakdown of how Time-Based One-Time Passwords are generated: the RFC 6238 standard, the HMAC-SHA1 algorithm, dynamic truncation, and why the whole system needs no network connection to work.
AuthBro is a good fit if you want your two-factor codes somewhere you actually control — no vendor account to create, no phone number to hand over, no monthly sync fee. Add an account in under a minute, and if you switch devices or browsers later, your encrypted backup goes with you.
No lock-in to one phone, no app store account required, and your codes go wherever your browser does.
