Best Simple OTP Alternatives & Competitors in 2024

Clerk is a complete suite of embeddable UIs, flexible APIs, and admin dashboards to authenticate and manage your users.

Authentication always has been security or convenience, but why compromise?

Elegant user management, tailor-made for B2B SaaS

Try for free freemium

Application and Data, Application Utilities, and User Management and Authentication

One-click phone number login and checkout

Biometric authentication at your fingertips.

Open Source

Allow your users to sign-in without a password or OTPs

Allow users to login without passwords

paid Free Trial $17.0 / Monthly

Auth0 is a program for people to get authentication and authorization services for their own business use.

Open Source

Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.

World-class out of the box Passwordless Multi-Factor Authentication (MFA) Anywhere technology, built specifically for developers and Fraud Ops teams. Implementation in hours, protection for a lifetime.

freemium $0.05 / Monthly (Only Pay For Active Users)

Log in to any website with your face or fingerprint.

Quick Authentication Setup for Devs

An easy and secure passwordless add-on for your website