One-time codes (TOTP)
Computes time-based codes like an authenticator app. Paste a Base32 secret or an otpauth link. It is not stored.
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No secret entered yet.
QR code
Create QR code
Creates an otpauth QR code from the secret above, to scan with an authenticator app. The code is generated locally; the secret never leaves the browser.
Anyone who sees this QR code can generate codes. Show it only as long as you need it, and do not take a screenshot you will not delete.
Scan QR code
Read a QR code from an image or with the camera. The image and camera feed are evaluated locally only.