README
OTPAuth
One Time Password library for Node.js, Deno, Bun and browsers.
It supports the generation and validation of HMAC-Based One-Time Passwords (HOTP) as specified in RFC 4226 and Time-Based One-Time Passwords (TOTP) as specified in RFC 6238. Frequently used in Multi-Factor Authentication (MFA) / Two-Factor Authentication (2FA) systems.
[!TIP] You can try the library with the demo application available at otpauth.molinero.dev.
If you wish to interact with the library in your browser console, the following snippet can be used:
const OTPAuth = await import("otpauth");
Usage
This section presents an overview of the most common usage patterns, along with some security recommendations.