Generate a test OTP with SHA-1, SHA-256 or SHA-512 and import an otpauth URI. The secret is masked and codes are generated only on request.
Local TOTP and HOTP test generator
Generate a test OTP with SHA-1, SHA-256 or SHA-512 and import an otpauth URI. The secret is masked and codes are generated only on request.
Use disposable test secrets only. This public website is not a password manager. Processing is local; the tool does not intentionally send or store the secret, but browser extensions and other page scripts remain outside this guarantee.
Quick start
Generate a disposable test OTP locally without exporting its secret.
1
Enter a Base32 test secret or import an otpauth URI
2
Match mode, algorithm, digits and period or counter
3
Generate explicitly, check expiry and clear sensitive data
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