← All tools
OMNIKITZ GUIDES

TOTP Authenticator: a practical guide

By Team Hypomnema · Cryptography & authentication

Generate time-based one-time codes from a Base32 secret.

Use the guide alongside the working tool.

Open TOTP Authenticator →

Worked example

The RFC test secret at Unix time 59 produces the 8-digit SHA-1 code 94287082.

Generate time-based one-time codes from a Base32 secret.

Prepare your input

Enter a Base32 secret or otpauth URI; it stays in memory.

Choose algorithm, period and digit count, or use the URI settings.

Review and export

Copy the current code and watch its real expiration countdown.

The RFC test secret at Unix time 59 produces the 8-digit SHA-1 code 94287082.

Scope and privacy

RFC 6238; 6 or 8 digits; SHA-1/256/512. Device time must be accurate. No backup, account sync or persistent secret storage.

Inputs are processed in this browser. Nothing is uploaded by this tool. Save an export or draft before closing the tab if you need to retain your work.

Ready to apply this workflow?

Try TOTP Authenticator →

Explore a related workflow

All practical guides →

Keep your original files and review the result. Found unclear instructions? Contact Team Hypomnema.

YOUR BROWSER, YOUR CHOICE