Google Authenticator (TOTP)
Generate two-factor authentication codes online
Add New Account
A friendly name to identify this account
The secret key provided when you enable 2FA
How to get your secret key
When enabling 2FA on any website, they will show you a QR code and a secret key (or "manual entry key"). Copy that key and paste it here. Your codes will match the Google Authenticator mobile app.
Your Accounts
No accounts added yet
Click "Add Account" to get started
When to Use Google Authenticator
Account Security
Add an extra layer of security to your email, social media, and banking accounts with time-based verification codes
Business Accounts
Protect company accounts, cloud services, VPNs, and internal systems with enterprise-grade two-factor authentication
Developer Tools
Secure GitHub, GitLab, cloud platforms, API keys, and development environments with TOTP authentication
Financial Services
Protect cryptocurrency wallets, trading platforms, banking apps, and payment services from unauthorized access
Phone Backup
Use as a backup when you don't have access to your phone or when your authenticator app is unavailable
Desktop Access
Generate codes directly on your computer without switching to your phone, ideal for remote work scenarios
Frequently Asked Questions
What is Google Authenticator and how does it work?
Google Authenticator is a software-based authenticator that implements TOTP (Time-based One-Time Password) for two-factor authentication. It generates 6-digit codes that change every 30 seconds based on a secret key and current time. These codes provide an extra layer of security for your online accounts.
How do I add an account to this authenticator?
Click the 'Add Account' button, enter an account name (e.g., 'GitHub', 'Gmail') and paste the secret key provided by the service you're securing. The secret key is typically shown when you enable 2FA on a website or app. Once added, the tool will immediately start generating verification codes.
Is this online authenticator secure?
Yes, this tool is secure because all operations happen in your browser. Your secret keys are stored only in your browser's local storage and never sent to any server. However, ensure you're using this tool on a trusted device and keep your secret keys confidential.
What is the difference between TOTP and HOTP?
TOTP (Time-based One-Time Password) generates codes based on the current time and changes every 30 seconds. HOTP (HMAC-based One-Time Password) generates codes based on a counter that increments with each use. Google Authenticator uses TOTP, which is more secure for most applications.
Can I use this instead of the Google Authenticator mobile app?
Yes, this tool generates the same codes as the Google Authenticator mobile app when given the same secret key. It's useful as a backup or when you don't have access to your phone. However, using a dedicated authenticator app on your phone is generally recommended for security.
What should I do if the codes don't work?
If codes don't work, check these common issues: 1) Ensure your device time is synchronized correctly, 2) Verify the secret key was entered correctly without spaces, 3) Wait for the timer to reset and try the new code, 4) Check if the service requires a specific time step (most use 30 seconds).
Will my accounts be deleted if I clear my browser data?
Yes, since accounts are stored in browser local storage, clearing your browser data will delete them. We recommend keeping a backup of your secret keys in a secure location. Always save backup codes provided by services when enabling 2FA.
How do I export or backup my authenticator accounts?
Currently, you should manually record your secret keys in a secure location. When you first enable 2FA on any service, they provide backup codes - save these. You can also write down the secret keys shown when adding accounts to this tool, keeping them in a secure physical or encrypted digital location.
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