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Generate time-based one-time passwords (TOTP) and setup values for 2FA workflows.
Generate and validate time-based OTP (one time password) for multi-factor authentication. totp generator, totp qr code generator.
Secret in hexadecimal
9f46f04e3d53f4877017
Epoch
1772085738
Iteration — Count
59069524
Padded hex
0000000003855454
Input or generate a base32 secret key.
Review current and adjacent time-window OTP values.
Use the setup QR/URI with your authenticator app when needed.
Validate codes in your target login or integration flow.
2FA integration development
Authenticator app setup checks
Support troubleshooting for OTP mismatch
Security testing of login flows
TOTP uses shared secrets and time windows to generate short-lived verification codes. It is a common multi-factor mechanism across consumer and enterprise systems.
This page is optimized for utility and troubleshooting workflows: set secret, generate code, compare against your system, and verify timing assumptions.
When OTP validation fails, verify device clock sync and period settings first, then confirm secret encoding and issuer/account labels.