TOTP 2FA Manager

Manage two-factor authentication codes locally in your browser. Live TOTP codes with countdown — no server, no sync.

Temporary use only — read before continuing

All data is stored in your browser's localStorage — not encrypted
Clearing browser data or using incognito mode will erase your entries
Do not use for critical accounts without a proper authenticator app backup
Suitable for temporary or low-risk scenarios only

No entries yet

Add your first TOTP entry by clicking "Add Entry" above. You can import an otpauth:// URL or enter manually.

About TOTP

TOTP (Time-based One-Time Password) is an industry-standard 2FA method defined in RFC 6238. Each code is derived from a shared secret and the current time, making it valid for only a short window (typically 30 seconds).

Live Generation

Codes are generated locally using the Web Crypto API (HMAC-SHA1/256/512). Nothing leaves your browser.

Countdown Timer

Each card shows a progress bar and countdown. Codes automatically refresh when the period resets.