OTP Code Generator & Validator
Generate and validate TOTP/HOTP codes.
Your input is processed locally in your browser and is not sent to a server.
Local-Only MFA Security Notice
All calculations run locally on your device. Your MFA secret keys are processed purely
in-memory using the native browser Web Crypto API and are never transmitted to any external
server.
Configure OTP Params
Current Active OTP Code
Enter a valid secret key to generate codes.
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