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TOTP code generator
Crypto and hashing
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About this tool
Calculate time-based one-time codes from a Base32 secret.
Common uses
- Calculate time-based one-time codes from a Base32 secret.
- Enter a Base32 secret or generate a new 20-byte secret for testing.
How to use it
- 1.Enter a Base32 secret or generate a new 20-byte secret for testing.
- 2.Match the service’s SHA-1/256/512 algorithm, 30/60-second period and 6/8-digit setting, then copy the current code.
Limits and notes
- Requires an accurate device clock. A newly generated secret is not enrolled with any account; the service must share the same secret and parameters.
Frequently asked questions
What does this tool do?
Calculate time-based one-time codes from a Base32 secret.
What should I check before using the result?
Requires an accurate device clock. A newly generated secret is not enrolled with any account; the service must share the same secret and parameters.