Free TOTP / Authenticator Code Generator
Generate TOTP 2FA codes from a secret key. Compatible with Google Authenticator. Free, fast, and works entirely in your browser with no sign-up required.
TOTP / Authenticator Code Generator
Generate TOTP 2FA codes from a Base32 secret key. Compatible with Google Authenticator, Authy, and all standard TOTP apps.
Secret Key
How to Use
Google Authenticator / Authy
- Open the authenticator app and add a new account manually.
- Enter the Base32 secret key from your service's 2FA setup page.
- Compare the code shown here with the app — they should match.
GitHub / Google / Dropbox
In your account security settings, enable 2FA and choose "Authenticator App". Copy the secret key or scan the QR code into your authenticator app. Use this tool to verify codes manually.
Security note: Never share your TOTP secret. This tool processes everything locally in your browser — your secret is never sent to any server.
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Frequently Asked Questions
What is TOTP?
TOTP (Time-based One-Time Password) generates 6-digit codes that change every 30 seconds, used for two-factor authentication.
Is my secret key safe?
Yes — the secret never leaves your browser. All computation is done locally.
Is it free?
Yes, completely free.
Does the TOTP / Authenticator Code Generator work on mobile devices?
Yes, the TOTP / Authenticator Code Generator is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the TOTP / Authenticator Code Generator in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
How do I use the TOTP / Authenticator Code Generator?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The TOTP / Authenticator Code Generator works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Free TOTP / Authenticator Code Generator
Free TOTP / Authenticator Code Generator is a free, browser-based tool in our Utility Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.