OTP QR Studio

Free OTP QR code generator and verifier for 2FA apps. Runs in your browser.

1 Account

Issuer optional Account

2 Secret

Secret key Base32

3 Settings

Type

Time-based Counter-based

Algorithm

SHA1 SHA256 SHA384 SHA512

Digits

6 7 8

Period

15s 30s 60s 2m

Starting counter

Google Authenticator ignores the algorithm, digits and period. Keep SHA1, 6 digits and 30s for it.

FreeOTP extras

Image URL optional, shown in the app and in the QR Require unlock before showing codes

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4 Verify

Scan the code with your authenticator app, then type the code it shows to check it works.

Expected code

Nothing leaves your browser: the secret, the QR code and the checks are all computed locally, and the page blocks network requests. The only exception is the optional image URL, which your browser fetches to show the logo.

Follows the Key URI Format, RFC 4226 (HOTP) and RFC 6238 (TOTP). Inspired by the FreeOTP QR generator. Adding 2FA to your own app? Read the 2FA integration guide.