totp
Generate or verify time-based one-time codes (RFC 6238). Paste a Base32 secret and the current code is shown live with a countdown to the next refresh.
Period
Digits
Base32 secret
Current code
refreshes in
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Next
Paste secret and code to verify.
Valid
window:
Invalid
doesn't match current ± 1 window
Paste a Base32 secret above to begin.
Invalid Base32 secret. Only A–Z and 2–7 allowed (case-insensitive). Spaces are stripped.