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2FA TOTP Authenticator
Add accounts, generate codes, and keep an encrypted backup. Everything stays in your browser.
Add account
Issuer (e.g., GitHub)
Account name / Label
Secret (Base32)
Actions
Digits
Period (sec)
Algorithm
Tip: you can often copy an otpauth:// URI from service security pages. This tool parses it for you.
Import via QR
Camera preview appears here. If blocked or not supported, use “Paste from URI” instead.
We only look for otpauth://totp/… content. Nothing is uploaded.
Backup & Restore
Backup password
Iterations
Backups are encrypted locally with AES-GCM using PBKDF2-derived keys. Keep your password safe—there’s no recovery.
Vault
About
TOTP = HMAC-based one-time codes computed over 30-second steps by default (RFC 6238). This page calculates everything locally using the Web Crypto API.