123note2FA Authenticator
Generate verification codes and keep an optional encrypted vault in this browser.
How to use
Generate time-based one-time passcodes from a setup key or authenticator QR code. Quick Code works without an account and clears its input when you leave or are idle for five minutes. Confirm the service and account before using a code. A generated code does not finish setup at the service; enter it there and keep its recovery codes safe.
My Vault is optional local encrypted storage in this browser profile. It uses a password you choose, which 123note cannot reset. Export an encrypted backup, test that the downloaded file opens, and store it safely. Google Sign-In does not unlock or sync the vault. Deleting an entry here does not disable two-factor authentication at the service.
After the app shell has loaded and been cached, Quick Code and the local vault may work offline. Browser and device storage can still be cleared. Codes depend on your device's correct date and time. Setup keys, QR images, codes and vault contents are not sent to 123note servers for this tool.
Frequently asked questions
Do I need to sign in?
No. Quick Code and the optional local encrypted vault are Free and do not use your 123note Google session.
Can 123note reset my vault password?
No. The password is needed to decrypt the vault. Keep a tested encrypted backup and its password safe.
Will removing an account here turn off 2FA?
No. Change or disable 2FA in that service’s security settings and keep another way to sign in.
Why is a code rejected?
Check the service, account, setup key, supported TOTP settings and your device’s automatic date and time.