Overview
TOTP 2FA codes with one-click copy and auto-fill. Free, open-source.
TOTP (Time-based One-Time Password) is the standard algorithm (RFC 6238) behind most two-factor authentication apps including Google Authenticator, Authy, Microsoft Authenticator, and 1Password. It combines a shared secret key with the current time to generate a short-lived 6-digit verification code that changes every 30 seconds. Your secret key never leaves your browser. All TOTP code generation happens 100% client-side using JavaScript. No data is sent to any server. You can verify this by checking the network tab in your browser developer tools. The source code is open on GitHub
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Details
- Version1.0.0
- UpdatedApril 22, 2026
- Size31.62KiB
- LanguagesEnglish (United States)
- DeveloperWebsite
Email
136153278@qq.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site