Processed on this device
2FA & OTP
TOTP Generator
Generate time-based one-time passwords in your browser.
Open related tool
2FA & OTPProcessed on this device
QR 2FA Scanner
Read an otpauth QR code locally and inspect its settings.
Secret Key & 2FA Setup
You can also paste a QR image from the clipboard.
The secret, setup URI and QR image stay in this browser. They are not stored, added to the URL or sent to the API.
Current code
Waiting for Secret or QR scan
Enter Base32 secret or scan QR code to generate live OTP.
How it works
Upload, paste, or scan a 2FA QR code image from your camera to extract and inspect the secret key, issuer, and otpauth URI parameters.
Privacy
Image processing and barcode decoding run 100% locally via Canvas API and WebAssembly. Camera streams are never transmitted.
FAQ
Can I use this scanner offline? Yes. The QR decode engine works completely on-device without network connectivity.
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