This tool generates one-time passwords in TOTP/HOTP modes, with QR code and otpauth URI output for authenticator app integration.
Key Features
- Supports
TOTPandHOTP - Random secret generation and configurable parameters
- QR code and otpauth URI generation
- OTP copy and countdown display
Steps
- Choose TOTP or HOTP mode.
- Enter or generate the shared secret.
- Configure digits, algorithm, period/counter.
- Copy OTP or scan QR code to enroll.
Use Cases
- 2FA integration testing
- Authentication workflow validation
- OTP mechanism learning demos
Notes
- Protect shared secrets to prevent OTP forgery.
- HOTP requires counter sync; TOTP requires time sync.
- Use together with HTTPS and secure device policies.