TOTP / 2FA Code Generator

Generate time-based one-time passwords (RFC 6238) compatible with Google Authenticator and 1Password. Paste a base32 secret or otpauth:// URL — codes update live, fully in-browser.

Base32 secret or otpauth:// URLTolerates lowercase, spaces, and dashes. otpauth:// URLs override the options below.

Period (seconds)DigitsAlgorithm

Current code

------

Time left in window24s

TOTP is computed locally via the Web Crypto API. Your secret never leaves the browser. The clock used is your system time — large drift will produce codes that don't match the server.

Related tools

Password Generator

Security

Generate strong random passwords with adjustable length and character sets — fully client-side, with entropy and strength readout.

JSON Formatter

Developer

Format and validate JSON. Indented or minified output, with clear error messages.

Base64 Encoder / Decoder

Developer

Encode text to Base64 or decode Base64 back to text. UTF-8 safe.

URL Encoder / Decoder

Developer

Percent-encode or decode URL components.